双包层Er^(3+)/Yb^(3+)共掺光纤放大器系统结构设计及其性能分析  

Performance analysis of a novel double-clad Er^(3+)/Yb^(3+) co-doped fiber amplifier designed

作　　者：林琪[1] 黎明[2] 林志文 

机构地区：[1]深圳职业技术学院,广东深圳518055 [2]湖北师范学院,湖北黄石435002 [3]黄州理工中等专业学校,湖北黄州438000

出　　处：《湖北师范学院学报（自然科学版）》2012年第2期72-76,共5页Journal of Hubei Normal University(Natural Science)

基　　金：深圳市科技计划项目(06KJP023)

摘　　要：基于光传输方程,数值分析了所设计的双包层Er3+/Yb3+共掺光纤放大器系统结构在980nm泵浦下,输出信号功率和噪声特性;讨论了它们随输入信号功率、输入信号波长、泵浦信号波长和光纤包层面积的关系。结果表明,该系统结构在输入信号小于-30 dBm,激活光纤长度为4m时,输出信号功率超过10dBm,增益高于35 dB,噪声系数受光纤内包层与纤芯面积之比影响较大,且小于3.5 dB.Based on light propagation equation, the output signal power , gain and noise characteristics of a novel double - clad Er^3＋/Yb^3＋ co - doped fiber amplifier designed Pumped at 980nm were investigated numerically. Their changes as func- tions of the input signal power, input signal wavelength, input pump signal wavelength and the ratio of cladding to core area were described. From a 4m long douhle- dad Er/Yb co - doped fiber, for the input signal power less than - 30dBm, the output signal power, gain and noise figure impacted on the ratio of the fiber cladding to core area greatly were obtained more than 10dBm, more than 35dB and less than 3.5dB, respectively.

关 键 词：光纤通信 双包层铒镱共掺光纤 光传输方程 光环形器 

分 类 号：TN253[电子电信—物理电子学]