|
|||||
|
|
| 一种新的自适应偏振模色散补偿前馈方法 | |
| 引用本文： | 陈林,徐江荣,杨伯君,张晓光,张茹,于丽. 一种新的自适应偏振模色散补偿前馈方法[J]. 中国激光, 2005, 32(9): 225-1229 |
| 作者姓名： | 陈林 徐江荣 杨伯君 张晓光 张茹 于丽 |
| 作者单位： | 1. 湖南大学计算机与通信学院,湖南,长沙,410082 2. 杭州电子科技大学理学院,浙江,杭州,310018 3. 北京邮电大学理学院,北京,100876 |
| 基金项目： | 国家863计划（2001AA122041）和国家自然科学基金（6007204）资助项目. |
| 摘 要： | 提出了一种新偏振模色散（PMD）补偿的方法，直接从被补偿光纤中提取偏振色散矢量的大小和方向信息，根据算法调节偏振模色散补偿器的各参量，使得补偿器的快轴与被补偿光纤的慢轴对准，从而使得偏振模色散得到补偿。这种方法的优点是减少了搜索的自由度。建立了40Gb／s偏振模色散前馈补偿系统，并通过数值模拟．对40Gb／s的非归零（NRZ）码的偏振模色散进行了自适应补偿。通过对补偿前后的眼图、偏振度（DOP）和Q值进行对比和分析，结果表明，这种偏振模色散补偿的前馈方法是非常有效的。 |
| 关 键 词： | 光通信 偏振模色散 自适应偏振模色散补偿 偏振度 前馈 |
| 文章编号： | 0258-7025（2005）09-1225-05 |
| 收稿时间： | 2004-06-28 |
| 修稿时间： | 2005-04-14 |
A Novel Feed-Forward Adaptive Polarization Mode Dispersion Compensation Method |
|
| CHEN Lin,XU Jiang-rong,YANG Bo-jun,ZHANG Xiao-guang,ZHANG Ru,YU Li. A Novel Feed-Forward Adaptive Polarization Mode Dispersion Compensation Method[J]. Chinese Journal of Lasers, 2005, 32(9): 225-1229 | |
| Authors: | CHEN Lin XU Jiang-rong YANG Bo-jun ZHANG Xiao-guang ZHANG Ru YU Li |
| Affiliation: | 1 School of Computer and Communication , Hunan University, Changsha, Hunan 410082, China;2 School of Science, Hangzhou University of Electronics Science, Hangzhou, Zhejiang 310018, China;3 School of Science, Beijing University of Post and Telecommunication, Beijing 100876, China |
| Abstract: | A novel feed-forward technique,which characterizes first-order polarization mode dispersion(PMD) and aligns it to a compensator,is proposed with stable,real-time compensation performance and reducing the searching freedom degrees compared to feed-back scheme.A feed-forward adaptive PMD compensation system is founded to compensate 40-Gb/s PMD for nonretrun-to-zero(NRZ),the eye diagrams,degree of polarization(DOP) and Q value for NRZ before and after compensation are compared and analyzed by numerical emulation.The results by numerical emulation show that this method is very effective in compensating PMD. |
| Keywords: | optical communication polarization mode dispersion adaptive polarization mode dispersion compensation degree of polarization feed-forward |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |