基于Optisystem的EDFA增益影响因素的仿真研究  

Simulation study on EDFA gain factors based on Optisystem software

作　　者：陈英 吴敏 刘蒙瑞 Chen Ying;Wu Min;Liu Mengrui(School of Electronic Information and Electrical Engineering,Changsha College,Changsha 410022,China)

机构地区：[1]长沙学院电子信息与电气工程学院,湖南长沙410022

出　　处：《无线互联科技》2018年第16期120-121,共2页Wireless Internet Technology

基　　金：湖南省科技计划;项目名称:热不敏感的高功率高效谐波转换技术研究;项目编号:2013RS4047;长沙市科技计划;项目名称:基于光纤多参量传感器的测量系统研制;项目编号:k1705035

摘　　要：利用Optisystem软件,文章分别对3种泵浦方式中掺铒光纤放大器(EDFA)增益的影响因素进行了仿真分析。通过模拟仿真发现,当泵浦光的功率恒定时,EDFA的增益首先会随光纤长度的增加而提升,之后当光纤长度增加到某一值时,增益会达到最大,接着逐渐下降。如果光纤的长度保持不变,在信号功率从0开始增加至5 m W范围内,EDFA增益会急剧下降,在信号功率从5 m W增加至100 m W范围内,EDFA增益逐渐趋于平缓接近于1。此外,掺铒光纤放大器在泵浦波长0.98μm以及1.48μm附近的增益达到最大值。The Optisystem software was used to make stimulation analysis on the factors of gain index of erbium-doped optical fiber amplifier in three pumping modes in this paper. It was found that when pump power is fixed, the gain index increases firstly with the enlargement of erbium-doped fiber length, then when the fiber length reaches a certain value, the gain index has reached the maximum, and finally it decreases gradually. If the length of the fiber is fixed, the gain index will get a sharp drop when the signal power increases from zero to 5 m W. And when the signal power increases from 5 m W to 100 m W, the gain index tends to be flat to close to 1. In addition, the gain of erbium-doped fiber amplifier reaches the maximum value at the pump wavelength 0.98 μm or 1.48 μm.

关 键 词：掺铒光纤放大器 增益 OPTISYSTEM 

分 类 号：TN722[电子电信—电路与系统]