Patent ID: 8064778
Filing Date: 2011-11-22
Classification: H04B

Abstract:
1. A fiber-optic transmission system, comprising: a transmitter having a designed chirp value, said transmitter having first and second inputs for receiving first and second input signals, respectively, used to produce a modulated output signal; an optical fiber responsive to said transmitter for receiving said output signal; a circuit for actively asymmetrically driving said first and second input signals so as to change said designed chirp value of said transmitter, wherein said circuit comprises first and second drivers, and wherein a gain of each of said first and second drivers is independently controlled; and a look-up table for controlling said gain of said first driver and said gain of said second driver wherein said look-up table includes a plurality of values each representing a drive voltage of either said first driver or said second driver, each of said drive voltages associated with a frequency variation of said modulated output signal.