中国物理B ›› 2004, Vol. 13 ›› Issue (8): 1291-1295.doi: 10.1088/1009-1963/13/8/019

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General demonstration of principal states of polarization and real-time monitoring of polarization mode dispersion in optical fibres

董晖1, 付松年1, 吴重庆2   

  1. (1)School of Electronics and Information Engineering, Beijing Jiaotong University, Beijing 100044, China; (2)School of Science, Beijing Jiaotong University, Beijing 100044, China
  • 收稿日期:2003-10-28 修回日期:2004-04-12 出版日期:2004-06-21 发布日期:2005-06-22
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 60272010) and by the High Technology Development Programme of China (Grant No 2003AA122510).

General demonstration of principal states of polarization and real-time monitoring of polarization mode dispersion in optical fibres

Dong Hui (董晖)a, Wu Chong-Qing (吴重庆)b, Fu Song-Nian (付松年)a   

  1. a School of Electronics and Information Engineering, Beijing Jiaotong University, Beijing 100044, China; b School of Science, Beijing Jiaotong University, Beijing 100044, China
  • Received:2003-10-28 Revised:2004-04-12 Online:2004-06-21 Published:2005-06-22
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 60272010) and by the High Technology Development Programme of China (Grant No 2003AA122510).

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摘要： We investigated the general properties of polarization effects in optical fibres and demonstrated the existence of so-called principal states of polarization (PSP), which mean the fixed points in mathematics, in different polarization effects, such as birefringence and polarization mode dispersion, by using fixed point theory. Furthermore, a time evolution vector is defined to describe the time evolution of polarization state in optical fibres, which is used to investigate the time evolution of polarization mode dispersion vector (PDV), including differential group delay and PSP. The experimental results of real-time monitoring of PDV by using this method are reported. To our knowledge, this is the first report on monitoring PSP evolution in optical fibres.

关键词: birefringence, principal states of polarization, polarization mode dispersion, time evolution vector

Abstract: We investigated the general properties of polarization effects in optical fibres and demonstrated the existence of so-called principal states of polarization (PSP), which mean the fixed points in mathematics, in different polarization effects, such as birefringence and polarization mode dispersion, by using fixed point theory. Furthermore, a time evolution vector is defined to describe the time evolution of polarization state in optical fibres, which is used to investigate the time evolution of polarization mode dispersion vector (PDV), including differential group delay and PSP. The experimental results of real-time monitoring of PDV by using this method are reported. To our knowledge, this is the first report on monitoring PSP evolution in optical fibres.

Key words: birefringence, principal states of polarization, polarization mode dispersion, time evolution vector

中图分类号:  (Birefringence, polarization)

  • 42.81.Gs
42.81.Dp (Propagation, scattering, and losses; solitons) 42.79.Sz (Optical communication systems, multiplexers, and demultiplexers?)