Study on noise figure and gain of EDFA

CHEN Lin~1; XU Jun~1; SHAO Xiao-peng~1; LI Gao-feng~2

doi:10.13756/j.gtxyj.2006.01.017

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Study on noise figure and gain of EDFA

- Study on noise figure and gain of EDFA
- Study on Optical communication Issue 1, Pages: 52-55(2006)
- 作者机构：
  
  1. 西安电子科技大学技术物理学院
  2. 大唐电信光网络部
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2006.01.017
  CLC： TN722
- Published：2006，
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[1]陈琳,徐军,邵晓鹏,李高峰.掺铒光纤放大器增益和噪声研究[J].光通信研究,2006(01):52-55.

CHEN Lin~1, XU Jun~1, SHAO Xiao-peng~1, et al. Study on noise figure and gain of EDFA. [J]. (1):52-55(2006)
[1]陈琳,徐军,邵晓鹏,李高峰.掺铒光纤放大器增益和噪声研究[J].光通信研究,2006(01):52-55. DOI： 10.13756/j.gtxyj.2006.01.017.

CHEN Lin~1, XU Jun~1, SHAO Xiao-peng~1, et al. Study on noise figure and gain of EDFA. [J]. (1):52-55(2006) DOI： 10.13756/j.gtxyj.2006.01.017.

摘要

文章首先介绍了掺铒光纤放大器（EDFA）的结构和工作原理

然后运用能级理论和激光原理

深入全面地分析了影响EDFA增益和噪声的主要因素

得出了EDFA增益和噪声与泵浦功率、泵浦方式、输入信号光功率和掺铒光纤长度等关系的一些重要结论

并且通过实验进一步验证了这些结论;提出了提高EDFA增益

减小噪声系数的方法;最后根据文中得出的结论

设计了一种高增益低噪声的C波段EDFA光路

该光路已经应用于工程实践中。

Abstract

In this paper the structure and operation principle of Erbium-Doped Fiber Amplifier（EDFA） are introduced firstly.Then

the factors influencing the gain and Noise Figure（NF） of EDFA are investigated comprehensively and deeply with laser principle and energy-level theory.Some important conclusions about the relation of gain

noise and pump power

pump way

input signal power

erbium-doped fiber length

etc are drawn and verified further through the experiment;The methods to enhance gain and reduce NF are proposed.Finally

according to those conclusions

a c-band

high gain and low noise optical circuit of EDFA is designed

and the optical circuit has already been applied to project practice.

关键词

掺铒光纤放大器增益噪声系数

Keywords

EDFAgainNoise Figure（NF）

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College of Electronic Engineering, Xi’an University of Posts and Telecommunications

College of Communication and Information Technology,Xi’an University of Posts and Telecommunications

Wuhan Molex Communication Technology Co., Ltd.

Wuhan Research Institute of Posts and Telecommunications

Wuhan Research Institute of Post and Telecommunications

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