摘要
基于研制成功的两级偏振模色散自适应补偿系统,提出对光传输系统中偏振模色散(PMD)自动搜索跟踪的补偿算法,该算法解决了偏振模色散补偿多自由度搜索中易于陷入局部极大值的问题实验证明应用该算法制成的偏振模色散自适应补偿器性能优越,所能达到的性能参数为全局补偿搜索时间78.77ms,跟踪响应时间15.75ms另外,为了将研制的动态PMD补偿器得以实用化。
An adaptive algorithm for dynamical compensation of polarization mode dispersion (PMD) in optical transmission systems was proposed and realized in the experiment. It gives a good solution of global optimum searching in multi degree of freedom PMD compensation avoiding to be trapped in sub optima. The algorithm demonstrated itself a good characteristics and fast speed for global optimum searching and tracking in PMD compensation. The time used for global optimum searching is 78.77 ms and response tracking time is 15.75 ms. In addition, in order to apply it in real system, sampling and feedback control module, the core of the PMD compensation, is deeply analyzed.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2004年第11期1351-1355,共5页
Acta Photonica Sinica
基金
国家863计划(2001AA122041)
国家自然科学基金(60072042)资助项目
关键词
光纤通信
偏振模色散
动态补偿
取样反馈控制
Optical communication
Polarization mode dispersion
Dynamic compensation
Sampling and feedback control
