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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 22, Iss. 2 — Feb. 1, 2005
  • pp: 336–346

Automatic polarization-mode dispersion compensation by a particle-swarm optimization method and adaptive dithering algorithm

Yuan Zheng, Xiaoguang Zhang, Yu Shen, Guangtao Zhou, and Bojun Yang  »View Author Affiliations


JOSA B, Vol. 22, Issue 2, pp. 336-346 (2005)
http://dx.doi.org/10.1364/JOSAB.22.000336


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Abstract

We demonstrate multistage polarization-mode dispersion (PMD) compensation numerically and experimentally by using a particle-swarm optimization (PSO) algorithm in the searching process and an adaptive dithering algorithm in the tracking process. PMD compensation in a 40-Gb/s nonreturn-to-zero (NRZ) system based on the algorithm with a global neighborhood structure in one channel and in two channels is explored numerically. The numerical results show that the PSO algorithm is very efficient for multiple-degree-of-freedom PMD compensation systems. For high-PMD compensation the algorithm with a local neighborhood structure is more efficient than that with a global neighborhood structure. We also investigate the performance of PSO in an experiment, where 4-degree-of-freedom PMD compensation is demonstrated in 10-Gb/s NRZ and return-to-zero (RZ) systems. The total search time with the PSO algorithm is several hundred milliseconds, and the response time for the compensator to recover from a sudden disturbance is less than 20 ms.

© 2005 Optical Society of America

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(260.2030) Physical optics : Dispersion

Citation
Yuan Zheng, Xiaoguang Zhang, Yu Shen, Guangtao Zhou, and Bojun Yang, "Automatic polarization-mode dispersion compensation by a particle-swarm optimization method and adaptive dithering algorithm," J. Opt. Soc. Am. B 22, 336-346 (2005)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-22-2-336

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