波分复用级联EDFA模拟传输二次失真补偿  

Second-Order Distortion and Compensation in theWDM Analog EDFA Concatenated System

作　　者：赵晓东[1] 申云峰 顾畹仪 徐大雄 

机构地区：[1]北京邮电大学电信工程学院

出　　处：《北京邮电大学学报》1998年第3期1-4,共4页Journal of Beijing University of Posts and Telecommunications

基　　金：国家"863计划";邮电部重点科研资助项目

摘　　要：详细分析了在波分复用级联ＥＤＦＡ模拟系统中的二次失真问题，经理论计算发现这种系统总的二次失真表现为放大积累过程。提出了一种能够补偿这种失真的ＥＤＦＡ单元，该单元由两个ＥＤＦＡ构成，当采用这种ＥＤＦＡ单元构成波分复用级联模拟传输系统时，可使系统中的二次失真得到补偿。The question of second-order distortion in the WDM analog EDFA concatenated system has been studied. The total second-order distortion is accumulated and amplified in the system. A new EDFA element has been reported to compensate the second-order distortion. The element is made from two EDFAs, and the second-order distortion can be compensated in the WDM analog EDFA element concatenated system.

关 键 词：光波分复用 掺铒光纤放大器 二次失真 光纤通信 

分 类 号：TN929.11[电子电信—通信与信息系统]