Method and system for forward pumping Raman amplification in an optical network

摘要

An optical communication system includes a plurality of nodes coupled by an optical fiber. The optical fiber comprises a gain medium and is operable to transmit optical signals in a plurality of channels. An optical pump is coupled to the optical fiber, and is operable to generate and transmit an optical pump signal co-propagating with the optical signals. The optical pump signal comprises a specified walk-off with respect to the optical signals and is operable to Raman amplify the signals in the optical fiber while maintaining an eye penalty below 0.5 decibels.