中国激光, 2002, 29 (2): 143, 网络出版: 2006-08-08
光纤中的瑞利后向散射对分布式光纤拉曼放大器噪声特性的影响
Impact of Rayleigh Backscattering on Noise Characteristics of Distributed Fiber Raman Amplifiers
光纤拉曼放大器 瑞利散射 放大的自发辐射 二次瑞利散射 接收机灵敏度 fiber Raman amplifier Rayleigh scattering amplified spontaneous emission double Rayleigh scattering sensitivity
摘要
光纤中的瑞利散射会对分布式光纤拉曼放大器(DFRAs)的放大的自发辐射(ASE)噪声产生影响,并带来二次瑞利散射(DRB)效应.得到了DFRAs中各种噪声项的解析或半解析表达式.通过此表达式深入分析了各噪声项影响分布光纤拉曼放大器性能的规律,并利用等价接收机灵敏度的概念讨论了瑞利散射对DFRAs噪声特性两种影响的总效果.
Abstract
Semi analysis expressions of various electrical noise terms in distributed fiber Raman amplifiers are derived in this paper, accounting to impacts of Rayleigh backscattering on amplified spontaneous emission (ASE) and double Rayleigh backscattering (DRB) noise. The concept of equivalent sensitivity is introduced in this paper. The impacts of Rayleigh backscattering on the noise performance of distributed Raman amplifier is studied comprehensively by this concept.
张巍, 彭江得, 刘小明, 范崇澄. 光纤中的瑞利后向散射对分布式光纤拉曼放大器噪声特性的影响[J]. 中国激光, 2002, 29(2): 143. 张巍, 彭江得, 刘小明, 范崇澄. Impact of Rayleigh Backscattering on Noise Characteristics of Distributed Fiber Raman Amplifiers[J]. Chinese Journal of Lasers, 2002, 29(2): 143.
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