高速光通信系统中的偏振模色散监测和补偿  

PMD Monitoring and Compensation in High Speed Optical Communication Systems

作　　者：袁学光[1] 张阳安[1] 张明伦[1] 张锦南[1] 黄永清[1] 张晓光[1] 

机构地区：[1]信息光子学与光通信国家重点实验室(北京邮电大学),北京100876

出　　处：《北京邮电大学学报》2011年第3期113-117,共5页Journal of Beijing University of Posts and Telecommunications

基　　金：国家高技术研究发展计划项目(2009AA01Z224);中国博士后科学基金项目(20100470259);中央高校基本科研业务费专项资金项目(2009RC0401;2009RC0405);青年科研创新计划专项项目(G470225)

摘　　要：为了补偿高速光通信系统中偏振模色散(PMD),理论分析了以偏振度(DOP)作为PMD监测信号的原理;采用DOP监测法设计并实现了高精度和高响应速率的PMD实时在线监测单元,输入光功率范围为-20～0 dBm,响应时间为1μs,监测精度为1%;使用PMD监测单元进行了43 Gbit/s归零码光差分正交相移键控系统PMD自适应补偿实验.实验结果表明,PMD自适应补偿系统可在1 ms内完成PMD的跟踪补偿,补偿效果良好.In order to compensate polarization mode dispersion （PMD） in high speed optical communication systems, an analysis of the principle of PMD monitoring with degree of polarization （DOP） as moni- toring signal is proposed. Utilizing DOP method, a high precision and high response rate real-time inline PMD monitoring unit is designed and implemented. The range of input optical power is - 20 - 0 dBm, the response time reaches 1μs and the detection accuracy is 1%. An experimental system is set up to a- daptively compensate the PMD of 43 Gbit/s return to zero differential quadrature phase shift keying system with PMD monitoring unit. Experiments show that the adaptive PMD compensation can be completed in 1 ms and the compensation effect is significant well.

关 键 词：光通信系统 偏振模色散 偏振模色散监测 偏振模色散补偿 

分 类 号：TN929.11[电子电信—通信与信息系统] O436.3[电子电信—信息与通信工程]