The Variation of Signal to Noise Ratio in Optical Communication System Using Concatenated Optical Amplifiers

何华杰; 顾畹仪; 李国瑞; 徐大雄

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The Variation of Signal to Noise Ratio in Optical Communication System Using Concatenated Optical Amplifiers

更新时间：2025-12-08

- The Variation of Signal to Noise Ratio in Optical Communication System Using Concatenated Optical Amplifiers
- Acta Electronica Sinica Issue 1, (1997)
- 作者机构：
  
  北京邮电大学
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN929.11
- Published：1997
- 稿件说明：
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[1]何华杰,顾畹仪,李国瑞,徐大雄.级联光放大器通信系统中的信噪比变化[J].电子学报,1997(01):117-120.

何华杰, 顾畹仪, 李国瑞, et al. The Variation of Signal to Noise Ratio in Optical Communication System Using Concatenated Optical Amplifiers[J]. Acta Electronica Sinica, 1997, (1).
[1]何华杰,顾畹仪,李国瑞,徐大雄.级联光放大器通信系统中的信噪比变化[J].电子学报,1997(01):117-120. DOI：

何华杰, 顾畹仪, 李国瑞, et al. The Variation of Signal to Noise Ratio in Optical Communication System Using Concatenated Optical Amplifiers[J]. Acta Electronica Sinica, 1997, (1). DOI：

摘要

我们从计算掺铒光纤放大器（ＥＤＦＡ）输出的光子数的起伏入手，得到了适用于各种工作状态的单个ＥＤＦＡ输出信噪比表达式．由此分析了级联光放大器通信系统中的信噪比变化，并与前人的工作进行了比较．

Abstract

We star t form the photon number fluctuation in EDFA’S output

and get the analytical expression of signal to noise ratio（SNR） of EDFA’s output. This method is valid when EDFA works in saturation condition. Then the SNR in optical fiber communication systems using cascaded EDFAs is analyzed and our results are compared with previous work.

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