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Theoretical study of polarization mode dispersion emulators

Lou Cai-Yun Zeng Li Zhang En-Yao

Theoretical study of polarization mode dispersion emulators

Lou Cai-Yun, Zeng Li, Zhang En-Yao
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  • Received Date:  16 April 2004
  • Accepted Date:  09 August 2004
  • Published Online:  17 March 2005

Theoretical study of polarization mode dispersion emulators

  • 1. (1)清华大学电子工程系,北京100084; (2)清华大学精密仪器与机械学系,精密测试技术与仪器国家重点实验室,北京100084

Abstract: The performances of the three polarization mode dispersion (PMD) emulators commonly used today are analyzed and compared among them through numerical simulation of their differential group delay (DGD) statistical characteristics and PMD vector autocorrelation function. The results demonstrate that to produce DGD that can match theoretical distribution, one DGD generator is adequate, while at least 15 sections are necessary in the emulator built by polarization maintaining fibers and rotatable connectors. And the autocorrelation function of the emulator based on polarization maintaining fibers depends on DGD of every section, while that of the emulator based on DGD generators is smooth and can be regarded as constant outside the central frequency range.

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