WDM系统PMD自适应补偿的研究  

Adaptive PMD Compensation in WDM System

作　　者：陈敏[1] 陈林[1] 文双春[1] 

机构地区：[1]湖南大学计算机与通信学院,长沙410082

出　　处：《光纤与电缆及其应用技术》2007年第4期29-32,共4页Optical Fiber & Electric Cable and Their Applications

基　　金：湖南省自然科学基金资助项目(06JJ5108)

摘　　要：根据非线性耦合薛定谔方程,得到了在8×40 Gb/s波分复用(WDM)系统传输后各个信道归零码(RZ)的眼图以及各个信道的偏振度(DOP)。以DOP作为反馈信号,采用最坏信道补偿方案对几个性能最坏的信道进行了自适应补偿。补偿结果表明,补偿后信道的DOP值以及眼图张开度都有明显的改善,说明此种补偿方案能有效地改善WDM系统的性能。Based on coupled nonlinear Schrodinger equation, eye diagrams of return-to-zero and degree of polarization （DOP） of each channel after transmission in a 8 × 40 Gb/s WDM system are obtained by numerical emulation. Choosing DOP as the feedback signal, several worst channels are carried out adaptive PMD compensation using worst channel equalization method. After compensation the DOP and eye diagrams of the channels are obviously improved, indicating that this compensation solution is effective for improving the performance of WDM systems.

关 键 词：波分复用 偏振模色散补偿 最坏信道补偿法 自适应补偿 

分 类 号：TN929.1[电子电信—通信与信息系统]