| (In millions, exceptper share data)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               | 2002Reported | One-TimeItems1 | Restructuringand Other Charges | 2002Pro Forma | 2001Reported | One-TimeItems2 | Restructuringand Other Charges | 2001Pro Forma |
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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           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| Net sales                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | $1.317.0     | —         | —                         | $1,317.0      | $2,199.7     | —         | $  (6.2)             | $2,205.9      |
| Cost of goods sold830.5—$99.7730.81,436.5—250.21,186.3Gross margin486.5—(99.7)586.2763.2—(256.4)1,019.6Operating expenses816.2$ 5.4169.0641.81,042.6—192.2850.4Operating loss(329.7)  (5.4)(268.7) (55.6)(279.4)—(448.6)169.2Other income1.929.6—31.534.6$(13.1)—47.7Earnings (loss)  before taxes(327.8)(35.0)(268.7)(24.1)(244.8)(13.1)(448.6)216.9Net earnings$(313.1)$(111.7)$(184.9)$ (16.5)$(182.0)$  (9.0)$(321.6)$ 148.6Diluted EPS$ (0.76)$ (0.27)$ (0.45)$ (0.04)$ (0.44)$ (0.02)$ (0.79)$   0.36Diluted shares411.4411.4411.4411.4409.6409.6413.8413.8
12002 operating expenses included acquired in-process research and development expenditures of $5.4 million.  2002 other income included a pre-tax loss of $29.6 million related to the impairment write-down of certain equity investments. Additionally, an $87.7 million valuation allowance against U.S. deferred taxes was established during 2002.22001 other income included a pre-tax loss of $25.9 million related to the impairment write-down and subsequent sale of certain preferred and common stock investments and a pre-tax gain of $12.8 million from the sale of stock held as an investment.     Sales within the United States for 2002 decreased 46.2% compared with 2001 and accounted for approximately 68.7% of total sales. Sales outside the United States decreased 20.7% compared with 2001 and accounted for approximately 31.3% of total sales. In 2001, sales outside the United States accounted for approximately 23.7% of total sales. The international market continues to play an increasingly important role for Tellabs as the Asia Pacific region now accounts for roughly 30% of global capital spending for the industry. In 2002, for the first time in the Company’s history, one half of the Company’s top 20 customers worldwide came from countries outside North America.    Total gross profit in 2002 was $586.2 million or 44.5% of sales, compared with $1,019.6 million or 46.2% of sales in 2001. Margin on product revenues for 2002 totaled 46.1% of sales compared with 51.2% of sales for 2001. The decrease in gross product margin was a result of the change in revenue mix toward new products, whose margins are typically lower until economies of scale are realized and cost reduction efforts performed.      Margin for services and other revenues during 2002 totaled 36.5% of sales compared with 17.7% of sales for 2001. The increase was a result of customer service efficiency gains.     Operating expenses for 2002 were $641.8 million compared with $850.4 million in 2001. Research and development expenditures for 2002 totaled $335.2 million compared with $422.7 million in 2001. The reduction in research and development spending was primarily a result of employee layoffs as well as reprioritization of certain development projects. Research and development spending as a percentage of sales was 25.5% in 2002 and 19.2% in 2001. This increase as a percentage of sales was a function of lower sales volume in 2002 and spending related to new product offerings.     Selling, general and administrative expenditures for 2002 totaled $297.8 million compared with $400.3 million in 2001. The reduction in selling, general and administrative spending was a direct result of the Company’s restructuring efforts, coupled with the positive impact of continued cost savings strategies, most notably the focus on reducing controllable spending. As a percentage of sales, selling, general and administrative spending for 2002 increased to 22.6% compared with 18.1% in 2001, due primarily to lower sales volume in 2002.     Total other income for 2002 amounted to $31.5 million compared with $47.7 million in 2001. The reduction in total other income was mainly the result of lower interest income in 2002 due to lower prevailing interest rates and lower average invested balances.     The Company’s effective tax rate was 31.4% at December 27, 2002, and 31.5% at December 28, 2001.**2001 Overview**2001 was a challenging year in the industry, and Tellabs responded by undertaking a series of restructurings intended to both realign its cost structure and reinvent its business to meet the new outlook for the industry. Major components of the Company’s restructuring efforts included: exiting the SALIX®and NetCore next-generation switching program; discontinuing the development of the TITAN® 6700 optical switch; strategic realignment of worldwide manufacturing capacity; workforce reductions; a reduction of excess inventories and related purchase commitments and a consolidation of facilities. Overall, the Company incurred pre-tax restructuring and other charges of $448.6 million. For a detailed discussion of the Company’s 2001 restructuring efforts, see *Note   3, Restructuring and Other Charges*.     Additionally, the Company recognized a one-time charge for the impairment write-down and subsequent sale of certain investments in 2001, totaling $25.9 million. This was partially offset by the pre-tax gain of $12.8 million from the sale of a single stock investment. Both of these one-time items resulted in net pre-tax charges of $13.1 million to other income.     Tellabs acquired Future Networks, Inc. (“FNI”), a standards-based voice and cable modem technology intended to augment the Company’s broadband access business, for approximately $141.9 million (for more information, see *Note 5, Business Combinations*).**2001 vs. 2000 Pro Forma Comparison**Due to the number of one-time items in both 2001 and 2000, the Company believes exclusion of these items from the comparison of operations for 2000 and 2001 provides a more accurate understanding of the Company’s core business. As a result, all 2001 vs. 2000 comparisons are derived from the pro forma results of operations from the chart below. Investors are advised to read the following comparisons in conjunction with the Company’s audited financial statements and notes thereto appearing elsewhere in this annual report. (In millions, exceptper share data)2001ReportedOne-TimeItems1Restructuringand Other Charges2001Pro Forma2000ReportedOne-TimeItems22000Pro FormaNet sales$2,199.7—$   (6.2)$2,205.9$3,387.4—$3,387.4Cost of goods sold1,436.5—250.21,186.31,552.0—1,552.0Gross margin763.2—(256.4)1,019.61,835.4—1,835.4Operating expenses1,042.6—192.2850.4840.4$    5.8834.6Operating margin(279.4)—(448.6)169.2995.0(5.8)1,000.8Other income34.6$  (13.1)—47.7114.453.061.4Earnings (loss)  before taxes(244.8)(13.1)(448.6)216.91,109.447.21,062.2Net earnings  (loss) before  cumulative effect(182.0)(9.0)(321.6)148.6760.031.9728.1Cumulative effect, net————(29.2)—(29.2)Net earnings$(182.0)$   (9.0)$(321.6)$ 148.6$ 730.8$   31.9$ 698.9Diluted EPS$  (0.44)$ (0.02)$  (0.79)$   0.36$   1.75$   0.08$   1.67Diluted shares409.6409.6413.8413.8418.4418.4418.41 2001 other income included a pre-tax loss of $25.9 million related to the impairment write-down and subsequent sale of certain preferred and common stock investments and a pre-tax gain of $12.8 million from the sale of stock held as an investment.2 2000 operating expenses included a pre-tax charge of $5.8 million related to the SALIX merger. 2000 other income included a pre-tax gain of $39.8 million on the sale of stock held as an investment and a pre-tax gain of $13.2 million related to distributions from the Company’s technology investments.     2001 net sales totaled $2,205.9 million, a decrease of 34.9% compared with 2000 net sales. The primary driver behind the decrease in net sales was the slowdown in capital spending by the major telecommunications carriers. Net product sales in 2001 were down 39.6% to $1,878.4 million compared with $3,110.7 million in 2000, mainly the result of lower sales of the Company’s optical networking products. Optical networking products sales for 2001 totaled $1,202.8 million compared with $2,160.3 million in 2000. Lower sales of the Tellabs 5500 and Tellabs 5320 digital cross-connect systems, particularly in the United States, were the primary contributors to the overall shortfall in optical networking products revenue. During 2001, Tellabs recognized first revenues from sales of the new entrants to the Company’s optical networking product portfolio, the Tellabs 6500 transport switch and the Tellabs 7100 optical transport switch, which accounted for approximately 4% of overall sales and partially mitigated the overall decline experienced from the slowdown in carrier spending. Broadband access product sales for 2001 totaled $538.0 million compared with $763.2 million in 2000. The 29.5% decline in broadband access products sales was the result of a combination of lower Tellabs 2300 telephony distribution system sales and lower the Tellabs 8100 (formerly known as MartisDXXTM) managed access and transport system sales, which offset gains during the year in sales of the Tellabs 6300 series of managed transport systems. Sales of Tellabs voice-quality enhancement products totaled $137.6 million for 2001, down 29.1% largely the result of lower sales of echo cancellation products.     Net services and other revenues for 2001 totaled $327.5 million compared with $276.7 million for 2000. Net services and other revenues were generated from the Company’s services and solutions area, which provides a variety of professional services to customers, including the installation and testing of the Company’s products. The 18.4% growth was mainly a function of the completion of installation and testing services in 2001 related to the record fourth-quarter 2000 sales of the Company’s optical networking products.     Sales within the United States for 2001 decreased 36.0% compared with 2000 and accounted for approximately 76.4% of total sales. Sales outside the United States decreased 31.0% compared with 2000 and accounted for approximately 23.6% of total sales.     Gross profit as a percentage of sales for 2001 was 46.2% compared with 54.2% for 2000. Gross product margin for 2001 totaled 51.2% compared with 58.6% for 2000. The decrease in gross margin for 2001 was a result of a variety of factors including:- A shift in overall product mix brought about by the abrupt slowdown in service provider spending, particularly in the United States, which had the greatest impact on the Company’s higher-margin optical networking products, and
- Lower sales leverage of the Company’s relatively fixed manufacturing expenditures, particularly in the first part of 2001, a result of the combination of the slowdown in service provider spending and the fact that the Company had initially structured its operations for a much higher revenue target in 2001.
    Services and other gross profit as a percentage of sales for 2001 was 17.7% compared with 4.8% in 2000. The improvement was a function of both favorable expense leverage in 2001 as a result of the significant growth in net services and other revenues, and cost-control efforts implemented in the Company’s professional services area.     Operating expenses for 2001 were $850.3 million compared with $834.7 million in 2000. As a percentage of sales, operating expenses in 2001 were 38.5% compared with 24.6% in 2000. Research and development expenditures for 2001 totaled $425.5 million compared with $415.2 million in 2000. The growth in research and development spending was attributable to product development work on the two new optical networking products introduced in 2001, expenditures associated with the development of the Tellabs 7100 optical transport system and the discontinued TITAN 6700 optical switch, and the inclusion of expenditures from Future Networks, Inc., which was acquired in February 2001 (for more information, see *Note 5, Business Combinations*). The overall growth in research and development spending was partially offset by cost savings resulting from the discontinuation of the SALIX and NetCore next-generation switching initiative in April 2001. Research and development spending as a percentage of sales was 19.3% in 2001 and 12.3% in 2000. This increase as a percentage of sales was a function of lower sales volume in 2001.     Selling, general and administrative expenditures for 2001 totaled $400.3 million compared with $407.8 million in 2000. The reduction in selling, general and administrative spending was a direct byproduct of the Company’s 2001 restructuring efforts, coupled with the positive impact of cost-savings strategies implemented during the latter part of 2001. These cost-saving strategies included curtailing discretionary spending, generally eliminating salary increases, instituting an executive level pay reduction and eliminating Global Incentive Plan bonuses for the year. These measures negated earlier spending growth that resulted from business infrastructure and staffing decisions made during the latter part of 2000 and early stages of 2001, based on the then-anticipated growth of the Company. As a percentage of sales, selling, general and administrative spending for 2001 increased to 18.1% compared with 12.0% in 2000, due primarily to lower sales volume in 2001.     Total other income for 2001 amounted to $47.7 million compared with $61.5 million in 2000. The reduction in total other income was mainly the result of lower interest income in 2001, which was the result of a combination of lower prevailing interest rates and lower short-term marketable securities levels, when compared to 2000.     The effective tax rate for both 2000 and 2001 was 31.5%. Tellabs’ effective tax rate reflects the benefits of research and development tax credits and lower foreign tax rates, as compared with the United States federal statutory rate.**Liquidity and Capital Resources**The Company’s principal source of liquidity is its cash and equivalents and short-term investments, which totaled $1,019.2 million at December 27, 2002, and $1,101.6 million at December 28, 2001. The overall decrease of $82.4 million was primarily the result of the $291.7 million in net cash paid for the Ocular acquisition, offset by $177.8 million in cash from operations (See *Note 5, Business Combinations*).     The Company generated positive operating cash flow in 2002 of $177.8 million largely from its cash earnings of $207.9 million, which is defined as the net loss for the year adjusted for non-cash gains and charges. These non-cash gains and charges are primarily restructuring charges, depreciation, amortization and deferred income taxes. The Company’s operating cash flow also benefited $275.2 million from a reduction in both outstanding customer receivables and on-hand inventories. These cash-flow improvements allowed the Company to pay down $191.6 million of restructuring-related liabilities.     The Company liquidated a portion of its short-term investments portfolio for $153.5 million. These funds, in conjunction with the positive cash flow provided by operating activities, were used in paying off the Company’s total long-term debt ($8.8 million), investing in capital purchases ($34.1 million) and purchasing Ocular ($291.7 million net cash).      At December 27, 2002, the Company had accruals for unpaid restructuring charges of $130.9 million compared with $180.0 million at December 28, 2001. The 2002 accrual balance consisted primarily of reserves for employee severance, leased facility exit costs and outstanding inventory purchase commitments. The Company has $85.4 million of the 2002 ending balance in short-term accrued restructuring and other charges since the Company anticipates paying out these reserves during 2003. The remaining $45.5 million, which consists solely of reserves for leased facility exit costs, is recorded in accrued long-term restructuring charges.     The Company has never paid a cash dividend, and the current policy is to retain earnings to provide funds for the operation and expansion of the business. The Company does not anticipate paying a cash dividend in the foreseeable future.     Overall, management believes its December 27, 2002, working capital level and, in particular, its total cash and short-term investments balance of $1,019.2 million, will be sufficient to meet the Company’s normal operating needs, both now and in the foreseeable future, and to fund the remaining unpaid amounts from the Company’s previous restructuring efforts. Sufficient resources exist to support the Company’s operations either through currently   available cash, cash generated from future operations, short-term or long-term financing, or equity offerings.**Critical Accounting Policies**The methods, estimates and judgments that the Company uses in applying its accounting policies have significant impact on the results reported in the consolidated financial statements. Some of these estimates require difficult and subjective judgments, often as a result of the need to estimate matters that are inherently uncertain. The Company’s most critical accounting policies are allowance for excess or obsolete inventory (E&O), the assessment of recoverability of goodwill, valuation allowance for deferred tax assets, and allowance for doubtful accounts. The Company has other policies that it considers to be key accounting policies (see *Note 1,**Summary of Significant Accounting Policies*); however, these policies do not meet the Securities and Exchange Commission’s definition of critical accounting policies because they generally do not require estimates or judgments that are difficult or subjective.*Inventory Valuation*The Company’s policy for valuation of inventory, including the determination of excess or obsolete inventory, requires management to use estimates of future demand for individual components of raw materials and finished goods within specific timeframes. Since management’s visibility to future product demand is limited, its forecast of inventory usage is highly subjective. If actual demand for specific products is ultimately less than forecasted demand, then it is possible that additional quantities of E&O inventory will be generated. Therefore, there can be no assurance that additional valuation allowances for E&O will not be required in the future.*Goodwill*In conjunction with the new accounting rules for goodwill, as of the beginning of 2002, the Company completed a goodwill impairment review for its single reporting unit and found no impairment. The Company utilizes the comparison of its market capitalization and book value as an indicator of potential impairment. The Company performed its annual impairment review during the fourth quarter of 2002. The Company did not find any indication that impairment existed and, therefore, no impairment was recorded. However, there can be no additional assurance that future tests will not result in a determination that an impairment has occurred that results in a charge to earnings.*Valuation Allowance for Deferred Tax Assets*The Company currently has significant deferred tax assets related to net operating loss carryforwards, tax credit carryforwards and deductible temporary differences that will reduce taxable income in future years. The Company’s losses in recent periods and the emphasis placed on such losses under generally accepted accounting practices represents sufficient evidence under the provision of SFAS No. 109, *Accounting for Income Taxes*, for the Company to determine that it was appropriate to establish a full valuation allowance against domestic deferred tax assets. Although future performance cannot be assured, the Company expects that these assets will ultimately be fully utilized. Until such time, the Company expects to continue to record a full valuation allowance on future U.S. tax benefits until an appropriate level of profitability is attained. *Allowance for Doubtful Accounts*The Company records an allowance for doubtful accounts when in the judgment of management it is likely that all or a portion of a receivable is not collectible. Determining the appropriate level of allowance requires significant judgment by management about our customers’ financial strength, industry outlook, local-country economic conditions and collectibility of past-due receivables, among other factors. Although management believes that the current allowance is sufficient to cover existing exposures, there can be no assurance that losses in excess of the current allowance will not be experienced. Likewise, there is no assurance that the financial condition of our customers going forward will not negatively impact their ability to pay amounts owed to us on future invoices.**Outlook**At December 27, 2002, the Company had limited ability to predict customer orders for 2003. Product backlog at the end of 2002 was approximately $96 million, down approximately 44% from the end of 2001. Substantially all of the backlog at December 27, 2002, is expected to be shipped in 2003. Tellabs considers backlog to be an indicator, but not the sole predictor, of future sales.**Forward-Looking Statements**This Management’s Discussion and Analysis and other sections of this Annual Report to Shareholders contain forward-looking statements made pursuant to the safe harbor provisions of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. These statements reflect management’s   expectations, estimates and assumptions, based on the information available at the time the document was prepared. These forward-looking statements include, but are not limited to, statements regarding future events, plans, goals, objectives and expectations. The words “anticipate,” “believe,” “estimate,” “expect,” “plan,” “intend,” “likely,” “will,” “should” and similar expressions are intended to identify forward-looking statements. Forward-looking statements are not guarantees of future performance and involve risks, uncertainties and other factors that may cause our actual performance or achievements to be materially different from any future results, performance or achievements expressed or implied by those statements. Important factors that could cause our actual results to differ materially from those in forward-looking statements include, but are not limited to: economic changes impacting the telecommunications industry; financial condition of telecommunications service providers, including impact of any bankruptcies; new product acceptance; product demand and industry capacity including consolidation; competitive products and pricing; manufacturing efficiencies; research and new product development; protection and access to intellectual property, patents and technology; ability to attract and retain highly qualified personnel; availability of components and critical manufacturing equipment; facility construction and start-ups; the regulatory and trade environment; availability and terms of future acquisitions; uncertainties relating to synergies, charges and expenses associated with business combinations and other transactions; and other risks and future factors that may be detailed from time to time in the Company’s filings with the Securities and Exchange Commission. For a further description of such risks and future factors, see Exhibit 99.1 to Form 10-Q for the quarterly period ended June 29, 2001, filed with the Securities and Exchange Commission on August 9, 2001. The Company’s actual future results could differ materially from those predicted in such forward-looking statements. In light of the foregoing risks, uncertainties and other factors, investors should not place undue reliance on the forward-looking statements in determining whether to buy, sell or hold any of the Company’s securities. The Company undertakes no obligation to publicly update or revise any forward-looking statements to reflect changed assumptions, the occurrence of anticipated or unanticipated events or changes to future results over time.      **Management Statement of Financial Responsibility**The financial statements of Tellabs, Inc., and Subsidiaries have been prepared under the direction of management in conformity with generally accepted accounting principles. In the opinion of management, the financial statements set forth a fair presentation of the consolidated financial condition of Tellabs, Inc., and Subsidiaries at December 27, 2002, and December 28, 2001, and the consolidated results of its operations for the years ended December 27, 2002, December 28, 2001, and December 29, 2000.     The Company maintains accounting systems and related internal controls which, in the opinion                 of management, provide reasonable assurances that transactions are executed in accordance with management’s authorization, that financial statements are prepared in accordance with generally accepted accounting principles, and that assets are properly accounted for and safeguarded.     Ethical decision-making is fundamental to the Company’s management philosophy. Management recognizes its responsibility for fostering a strong ethical climate so that the Company’s affairs are conducted to the highest standards of personal and corporate conduct. Employee awareness of these objectives is achieved through key written policy statements and training.     The Board of Directors has appointed three of its non-employee members as an Audit Committee. This committee meets periodically with management and the independent        auditors, who have free access to this committee without management present, to discuss the results of their audit work and their evaluation of the internal control structure and the quality of financial reporting.***/s Michael J. Birck***Michael J. BirckChairman of the Board and Chief Executive Officer***/s Joan E. Ryan***Joan E. RyanChief Financial Officer****/s Michael C. Smiley***Michael C. SmileyVice President–International Finance and TreasurerJanuary 21, 2003*Joan E. Ryan resigned effective February 7, 2003, to accept the Chief Financial Officer position at SIRVA Inc. Michael C. Smiley was named interim Chief Financial Officer.**Report of Independent AuditorsTo the Board of Directors and Stockholders of Tellabs, Inc.**
We have audited the accompanying consolidated balance sheets of Tellabs, Inc., and Subsidiaries as of December 27, 2002, and December 28, 2001, and the related consolidated statements of operations, stockholders’ equity and cash flows for each of the three years in the period ended December 27, 2002. These financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on these financial statements based on our audits.     We conducted our audits in accordance with auditing standards generally accepted in the United States.  Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free from material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.     In our opinion, the financial statements referred to above present fairly, in all material                 respects, the consolidated financial position of Tellabs, Inc., and Subsidiaries at December 27, 2002, and December            28, 2001, and the consolidated results of their operations and their consolidated cash flows for each of the three years                 in the period ended December 27, 2002, in conformity with accounting principles generally accepted in the United States.                      As discussed in Notes 2 and 4 to the financial statements, the Company changed its method                    of accounting for goodwill and other intangibles and revenue recognition in 2002 and 2000, respectively.***/s Ernst&Young, LLP***Ernst&Young, LLPChicago, IllinoisJanuary 21, 2003
**Consolidated Statements of Operations**(In millions, except per-share data)**Year** |