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本文建立了偏分复用系统中偏振模色散与信号偏振态变化引起信道串扰的数学模型, 分析了偏振模色散对偏分复用信道射频功率的影响, 并提出了适用于偏分复用系统的光域偏振模色散补偿与偏分解复用同时进行的方案: 用信道的射频功率作为反馈控制信号, 监测链路中偏振模色散和偏振态变化引起的信道串扰的大小, 用改进的粒子群优化算法对偏振控制器进行自适应控制, 同时完成偏振模色散补偿与偏分解复用. 在112 Gb/s偏分复用-差分正交相移键控(PDM-DQPSK)传输系统中仿真验证了该方案的有效性. 结果表明该方案可以使112 Gb/s-PDM-DQPSK传输系统完成自适应偏分解复用的同时, 在1 dB的光信噪比代价下, 使系统对偏振模色散的容忍度提高20 ps.A model of polarization mode dispersion (PMD) and state of polarization (SOP) variation induced coherent crosstalk is established in a polarization division multiplexing system. The properties of radio frequency power of one channel in the presence of PMD are investigated. A combined scheme of PMD compensation and polarization de-multiplexing in optical domain is proposed, which is based on monitoring of the feedback signal of RF power. A modified particle swarm optimization algorithm is also used for the adaptive polarization control. The validity of the PMD compensation and polarization de-multiplexing scheme proposed here is demonstrated in a 112Gb/s-PDM-DQPSK simulation system. Results show that the PMD tolerance of the transmission system is increased by 20 ps with 1 dB OSNR margin and the channel separation is accomplished as well.
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Keywords:
- polarization division multiplexing system /
- crosstalk /
- polarization mode dispersion /
- polarization de-multiplexing
[1] Xie C J, Raybon G 2012 European Conference and Exhibition on Optical Communication (ECOC) Amsterdam, Netherlands, September 16-20 Mo.2.C.4
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[11] Wang Z N, Xie C J 2009 Opt. Express 17 3183
[12] Zhang X G, Weng X, Tian F, Zhang W B, Zhang Y A, Xi L X, Zhang G Y, Xiong Q J 2011 Optics Communications 284 4156
[13] Wang M G, Li T J, Lou C Y, Jian S S, Huo L, Yao H J, Zeng L, Cui J, Diao C 2005 Acta Phys. Sin. 54 2774 (in Chinese) [王目光, 李唐军, 娄采云, 简水生, 霍力, 姚和军, 曾丽, 崔杰, 刁操 2005 54 2774]
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[15] Huo L, Yang Y F, Pan S L, Luo C Y, Gao Y Z 2005 Chin. Phys. Lett. 22 3087
[16] Shen Y F, Liu X M, Zhong S, Zong L, Veselka J, Kim P, Fenment J, Sardesai P H 2010 J. Lightwave Technol. 28 3282
[17] Rao H 2008 Optical Fiber Communication/National Fiber Optic Engineers Conference (OFC/NFOEC) San Diego, California, America, Feb. 24-28, OThU1
[18] Ito T, Fujita S, Gabory E, Fukuchi K 2009 Optical Fiber Communication / National Fiber Optic Engineers Conference (OFC/NFOEC) San Diego, California, America, March 22-26, OThR5
[19] Zhang X G, Yu L, Zhou G T, Shen Y, Zheng Y, Li C Y, Liu Y M, Chen L, Yang B J 2003 Chin. Opt. Lett. 1 447
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[1] Xie C J, Raybon G 2012 European Conference and Exhibition on Optical Communication (ECOC) Amsterdam, Netherlands, September 16-20 Mo.2.C.4
[2] Zhou X, Yu J J, Huang M F, Shao Y, Wang T, Lynn N, Peter M, Martin B, Peter B, David W.P, Robert L, Zhu B Y. 2011 J. Lightwave Technol. 29 571
[3] Koch B, Noé R, Sandel D, Mirvoda V, Filsinger V, Puntsri K 2010 Optical Fiber Communication/National Fiber Optic Engineers Conference (OFC / NFOEC) San Diego, California, America, March 21-25, OThD4
[4] Toshihiko H, Toshiyuki H, Guan P Y, Masataka N 2011 Optical Fiber Communication / National Fiber Optic Engineers Conference (OFC/NFOEC) Los Angeles, California, America, March 6-10 JThA44
[5] Noé R, Hinz S, Sandel D, Wst F 2001 J. Lightwave Technol. 19 1469
[6] Wang Z N, Xie C J, Ren X M 2009 Opt. Express 17 7993
[7] Nelson L E, Nielsen N T, Kogelnik H 2001 Photon. Technol. Lett. 13 738
[8] Johannisson P, Wymeersch H, Sjodin M, Tan A.S, Agrell Erik, Andrekson P, Karlsson M 2011 Opt. Commun. Netw 3 493
[9] Yao X T, Yan L S, Zhang B, Willner A E, Jiang J F 2007 Opt. Express 15 7407
[10] Sun Y, Xi L X, Zhang X G, Qin J X, Lin J C, Liang X C 2012 Acta Opt. Sin. 32 0206006 (in Chinese) [孙洋, 席丽霞, 张晓光, 秦江星, 林嘉川, 梁晓晨 2012 光学学报 32 0206006
[11] Wang Z N, Xie C J 2009 Opt. Express 17 3183
[12] Zhang X G, Weng X, Tian F, Zhang W B, Zhang Y A, Xi L X, Zhang G Y, Xiong Q J 2011 Optics Communications 284 4156
[13] Wang M G, Li T J, Lou C Y, Jian S S, Huo L, Yao H J, Zeng L, Cui J, Diao C 2005 Acta Phys. Sin. 54 2774 (in Chinese) [王目光, 李唐军, 娄采云, 简水生, 霍力, 姚和军, 曾丽, 崔杰, 刁操 2005 54 2774]
[14] Li T J, Wang M G, Cai L B, Zhao J, Jian S S 2006 Chin. Phys. Lett. 23 864
[15] Huo L, Yang Y F, Pan S L, Luo C Y, Gao Y Z 2005 Chin. Phys. Lett. 22 3087
[16] Shen Y F, Liu X M, Zhong S, Zong L, Veselka J, Kim P, Fenment J, Sardesai P H 2010 J. Lightwave Technol. 28 3282
[17] Rao H 2008 Optical Fiber Communication/National Fiber Optic Engineers Conference (OFC/NFOEC) San Diego, California, America, Feb. 24-28, OThU1
[18] Ito T, Fujita S, Gabory E, Fukuchi K 2009 Optical Fiber Communication / National Fiber Optic Engineers Conference (OFC/NFOEC) San Diego, California, America, March 22-26, OThR5
[19] Zhang X G, Yu L, Zhou G T, Shen Y, Zheng Y, Li C Y, Liu Y M, Chen L, Yang B J 2003 Chin. Opt. Lett. 1 447
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