Signal Gain and Degradation in Fiber Raman Amplifiers

Shirley P. Neves, Marcio Freitas, Luiz C. Calmon

DOI: 10.14209/its.2002.802

Evento: 2002 International Telecommunications Symposium (ITS2002)

Keywords:

Abstract

"Raman Fiber Amplifiers will be important for the next generation high speed dense WDM optical communications systems due to its inherent broadband characteristics, fast response, moderate gain, and low noise figure. Signal gain characteristics of Raman amplifiers have been investigated recently, but very little has been said about signal degradation caused by dispersion and nonlinear effects in Raman amplifiers. This paper analyses different types of fibers as candidates for Fiber Raman Amplifiers considering signal gain issues, but also takes into account dynamic aspects related to signal degradation caused by group velocity dispersion and diverse nonlinear effects such as self-phase and cross-phase modulations."

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