可补偿二阶偏振模色散的两级自适应补偿器研究

张晓光; 于丽; 郑远; 沈昱; 周光涛; 席丽霞; 陈林; 张建忠; 苑铁成; 杨伯君

中国激光, 2004, 31 (11): 1391, 网络出版: 2006-06-12

可补偿二阶偏振模色散的两级自适应补偿器研究下载： 536次

Experiment of Adaptive Polarization Mode Dispersion Compensation up to Second Order with a Two-Stage Compensator

论文大纲

张晓光 ^*于丽郑远沈昱周光涛席丽霞陈林张建忠苑铁成杨伯君

作者单位

北京邮电大学理学院物理部, 北京 100876

摘要

研制了对于10 Gbit/s非归零码(NRZ)和归零码(RZ)光纤通信系统的二阶偏振模色散(PMD)自适应补偿实验系统。实验中运用光纤链路中的偏振度(DOP)作为反馈控制信号,采用粒子群优化算法(PSO)作为偏振模色散自适应补偿的搜索和跟踪控制算法,粒子群优化作为补偿搜索算法具有收敛速度快、抗噪声和避免陷入局部极值的优点;作为跟踪算法可以快速跟踪偏振模色散的随机变化。实验证明,该补偿系统可以同时补偿一阶和二阶偏振模色散。不论对于非归零码还是归零码,补偿后眼图恢复很好。补偿搜索时间为几百毫秒,跟踪系统对于链路中突发的偏振模色散变化的响应恢复时间小于20 ms,实现了准实时的一阶和二阶偏振模色散自适应补偿与跟踪。

Abstract

An adaptive polarization mode dispersion (PMD) compensation experiment for 10 Gbit/s nonreturn-to-zero (NRZ) and return-to-zero (RZ) optical fiber communication systems with a two-stage compensator is successfully realized, in which degree of polarization (DOP) feedback signal is used as PMD monitor. The algorithm so-called particle swarm optimization (PSO) is used in optimum searching and tracking process. It was proved that in the optimum searching process, the PSO algorithm has the characteristics of rapid convergence to the global optimum rather than being trapped in local sub-optima and robust to noise. In the tracking process, the algorithm can track the random changed PMD with fast speed. The compensator shows its ability to compensating the first- and second-order PMD at same time. After compensation the eye diagrams can be well recovered both for NRZ and RZ formats. The searching process is finished within several hundreds of milliseconds and the response time of recovering to optimum for a sudden PMD disturbance is less than 20 milliseconds. The quasi-real time adaptive PMD compensation is realized.

参考文献

[1] . Takahashi, T. Imai, M. Aiki. Automatic compensation technique for timewise fluctuating polarisation mode dispersion in in-line amplifier systems[J]. Electron. Lett., 1994, 30(4): 348-349.

[2] F. Heismann, D. A. Fishman, D. L. Wilson. Automatic compensation of first-order polarization mode dispersion in a 10 Gb/s transmission system [C]. Proc. ECOC’98, WdC11, 1998. 529～530

[3] H. Ooi, Y. Akiyama, G. Ishikawa. Automatic polarization-mode dispersion compensation in 40-Gbit/s transmission[C]. Proc. OFC/IOOC’99, WE5-1, 1999. 86～88

[4] . Y. Pua, K. Peddanarappagari, B. Y. Zhu et al.. An adaptive first-order polarization-mode dispersion compensation system aided by polarization scrambling: theory and demonstration[J]. J. Lightwave Technol., 1999, 18(6): 832-841.

[5] . Noé, D. Sandel, M. Yoshida-Dierolf et al.. Polarization mode dispersion compensation at 10, 20, and 40 Gb/s with various optical equaliziers[J]. J. Lightwave Technol., 1999, 17(9): 1602-1616.

[6] H. Rosenfeldt, R. Ulrich, U. Feiste et al.. First order PMD-compensation in a 10 Gbit/s NRZ field experiment using a polarimetric feedback-signal [C]. Proc. ECOC’99, WeC32, 1999

[7] . Francia, F. Bruyère, J.-P. Thiery et al.. Simple dynamic polarisation mode dispersion compensator[J]. Electron. Lett., 1999, 35(5): 414-415.

[8] H. Rosenfeldt, Ch. Knothe, R. Ulrich et al.. Automatic PMD compensation at 40 Gbit/s and 80 Gbit/s using a 3-dimentional DOP evaluation for feedback [C]. OFC’2001, PD27, 2001

[9] . Kikuchi. Analysis of signal degree of polarization degradation used control signal for optical polarization mode dispersion compensation[J]. J. Lightwave Technol., 2001, 19(4): 480-486.

[10] . C. Rasmussen, A. Isomura, G. Ishikawa. Automatic compensation of polarization-mode dispersion for 40Gb/s transmission systems[J]. J. Lightwave Technol., 2002, 20(12): 2101-2109.

[11] Liu Xiumin, Li Chaoyang, Li Ronghua et al.. Polarization mode dispersion measurement using Sagnac interferometer and fixed analyzer [J]. Chinese J. Lasers, 2002, A29(5):455～458
刘秀敏,李朝阳,李荣华等. 用Sagnac干涉法和固定分析法测量光纤偏振模的色散[J]. 中国激光, 2002, A29(5):455～458

[12] Zhang Xiaoguang, Yu Li, Zheng Yuan et al.. An experiment of adaptive polarization mode dispersion compensation for optical communication systems [J]. Acta Photonica Sinica, 2003, 32(12):1474～1477
张晓光,于丽,郑远等. 光纤通信系统中偏振模色散自适应补偿实验研究[J]. 光子学报, 2003, 32(12):1474～1477

[13] Xiaoguang Zhang, Li Yu, Guangtao Zhou et al.. Adaptive PMD compensation in 10 Gbit/s RZ optical communication system [J]. Chin. Opt. Lett., 2003, 1(8):447～450

[14] . Patscher, R. Eckhardt. Component for second-order compensation of polarization-mode dispersion[J]. Electron. Lett., 1997, 33(13): 1157-1159.

[15] . Kim. Schemes for complete compensation for polarization mode dispersion up to second order[J]. Opt. Lett., 2002, 27(8): 577-579.

[16] J. Kennedy, R. Eberhart. Particle swarm optimization [C]. Proc. of IEEE International Conference on Neural Networks, Piscataway, NJ USA, 1995. 1942～1948

[17] . Francia, F. Bruyère, D. Penninckx et al.. PMD second-order effects on pulse propagation in single-mode optical fibers[J]. IEEE Photon. Technol. Lett., 1998, 10(12): 1739-1741.

[18] Wang Lan, Zhao Wenyu, Wang Hongxiang et al.. Higher-order PMD effects on high bit-rate transmission systems [J]. Acta Photnica Sinica, 2002, 31(8):941～945
王岚,赵文玉,王宏祥等. 高速传输系统中高阶PMD的影响[J]. 光子学报, 2002, 31(8):941～945

张晓光, 于丽, 郑远, 沈昱, 周光涛, 席丽霞, 陈林, 张建忠, 苑铁成, 杨伯君. 可补偿二阶偏振模色散的两级自适应补偿器研究[J]. 中国激光, 2004, 31(11): 1391. 张晓光, 于丽, 郑远, 沈昱, 周光涛, 席丽霞, 陈林, 张建忠, 苑铁成, 杨伯君. Experiment of Adaptive Polarization Mode Dispersion Compensation up to Second Order with a Two-Stage Compensator[J]. Chinese Journal of Lasers, 2004, 31(11): 1391.

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