This paper gives a general and detailed introduce to the recent progress of fiber Raman amplifier(FRA) in extending transmission length
increasing bit rates
reducing channel space and exploiting new transmission spectrum. Then the lumped Raman amplifier providing high gain in the Sband and broadband spectrum is introduced.
关键词
光纤拉曼放大器频谱利用率超宽带放大器S波段放大器高增益
Keywords
FRAspectrum efficiencybroadband amplifierS-band amplifierhigh gain