| 偏振度作为反馈信号的偏振模色散补偿系统的性能研究 |
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| 引用本文： | 刘玉敏,俞重远,黄聪颖,张晓光.偏振度作为反馈信号的偏振模色散补偿系统的性能研究[J].中国激光,2005,32(1):9-82. |
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| 作者姓名： | 刘玉敏 俞重远 黄聪颖 张晓光 |
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| 作者单位： | 1. 北京邮电大学理学院,北京,100876;光通信与光波技术教育部重点实验室,北京,100876
2. 中国船舶重工集团公司726研究所,上海,200025 |
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| 基金项目： | 国家973计划项目(2003CB314901)，国家863计划项目(2003AA311070)，国家自然科学基金(60077026)资助项目 |
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| 摘 要： | 在以信号偏振度(DOP)作为反馈信号的偏振模色散补偿系统中．提出了分别利用带通和带阻滤波器来改进反馈信号的灵敏度和监测窗口的方法。比较了40Gbit／s归零(RZ)码传输系统和10Gbit／s非归零(NRZ)码传输系统中滤波器在改进反馈信号监测性能方面的作用．对滤波带宽的选择作了定性的数值分析。结果表明，通过滤波器的引入，可在很大范围内避免补偿算法在搜索中出现局部极值的可能，减少了迂回搜索．改进了补偿效果，同时有利于补偿系统的稳定。
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| 关 键 词： | 光通信 偏振模色散补偿 偏振度椭球 |
| 收稿时间： | 2003/7/7 |
Investigation of the PMD Compensation System with the DOP as a Feed Back Signal |
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| LIU Yu-min,YU Zhong-yuan,HUANG Cong-ying,ZHANG Xiao-guang.Investigation of the PMD Compensation System with the DOP as a Feed Back Signal[J].Chinese Journal of Lasers,2005,32(1):9-82. |
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| Authors: | LIU Yu-min YU Zhong-yuan HUANG Cong-ying ZHANG Xiao-guang |
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| Affiliation: | LIU Yu-min 1,2,YU Zhong-yuan 1,2,HUANG Cong-ying 3,ZHANG Xiao-guang 1,2 1School of Science,Beijing University of Posts and Telecommunications,Beijing 100876,China 2Key Laboratory of Communication and Lightwave Technologies Ministry of Education,Beijing 100876 3No.726 Institute of China Ship Building Industry Corporation,Shanghai 200025,China |
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| Abstract: | The monitoring performance of monitor window and degree of polarization (DOP) sensitivity to defferetial group delay (DGD) can be improved greatly by using the band-pass and band-reject filters are presented in the polarization mode dispersion (PMD) compensation system, where the DOP is used for the feed back signals. A comparison is made for the filters in improving the monitoring performance of the feed back signals between the 40 Gbit/s return-to-zero (RZ) and 10 Gbit/s nonretrun-to-zero (NRZ) transmission system, and numerical analysis is made for the selection of the bandwidth of the filters. The results showed that the local extremum can be avoid in the searching process of the searching algorithm, so a bypass searching is reduced greatly, which is significant for the compensation effects and the stabilization of the system. |
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| Keywords: | optics communication polarization mode dispersion compensation degree of polarization ellipse |
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