SYSTEM AND METHOD FOR WIDE BAND RAMAN AMPLIFICATION

摘要

A multi-stage Raman amplifier 100 includes a first Raman amplifier stage 120 having a first sloped gain profile 30 operable to amplify a plurality of signal wavelengths 116, and a second Raman amplifier stage 121 having a second sloped gain profile 40 operable to amplify at least most of the plurality of signal wavelengths after those wavelengths have been amplified by the first stage. The second sloped gain profile is approximately complementary slope to the slope of the first sloped gain profile. The combined effect of the first and second Raman stages contributes to an approximately flat overall gain profile 50 over the plurality of signal wavelengths.