Patent ID: 8229303
Filing Date: 2012-07-24
Classification: H04B

Abstract:
1. An optical transmitter for transmitting data over an optical fiber at a specified data rate, comprising: a pre-converter electrical channel that produces a pre-converter signal encoding the data, wherein the pre-converter signal has less pulse narrowing than that produced by a pre-converter electrical channel optimized to minimize data-dependent jitter and wherein the pre-converter electrical channel comprises a pre-emphasis filter that applies overcompensation to a signal received by the pre-converter electrical channel and wherein the pre-emphasis filter comprises a filter having coefficients of (1+g) and (−g) and a delay of 1 unit interval, wherein the value of g is greater than the value of g that would minimize data-dependent jitter; and a limiting E/O converter that receives the pre-converter signal and produces an optical signal from the pre-converter signal, where the optical signal encodes the data based on on-off keying and is suitable for transmission over the optical fiber.