中国物理B ›› 2011, Vol. 20 ›› Issue (2): 24214-024214.doi: 10.1088/1674-1056/20/2/024214

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Semiconductor optical amplifier used as regenerator for degraded differential phase-shift keying signals

杜树成1, 席丽霞2, 李建平2, 徐霞2, 张晓光2   

  1. (1)College of Nucleus Science and Technology, Beijing Normal University, Beijing 100875, China; (2)Key Laboratory of Information Photonics and Optical Communications, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • 收稿日期:2010-06-14 修回日期:2010-11-03 出版日期:2011-02-15 发布日期:2011-02-15
  • 基金资助:
    Project supported by the Scientific Fund for Chinese Universities (Grant No. BUPT 2009RC0413), and the National "863" High Technology Projects (Grant No. 2009AA01Z224).

Semiconductor optical amplifier used as regenerator for degraded differential phase-shift keying signals

Xi Li-Xia(席丽霞)a)†, Li Jian-Ping(李建平) a), Du Shu-Cheng(杜树成)b), Xu Xia(徐霞)a), and Zhang Xiao-Guang(张晓光) a)   

  1. a Key Laboratory of Information Photonics and Optical Communications, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, China; b College of Nucleus Science and Technology, Beijing Normal University, Beijing 100875, China
  • Received:2010-06-14 Revised:2010-11-03 Online:2011-02-15 Published:2011-02-15
  • Supported by:
    Project supported by the Scientific Fund for Chinese Universities (Grant No. BUPT 2009RC0413), and the National "863" High Technology Projects (Grant No. 2009AA01Z224).

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摘要： Phase and amplitude regeneration are necessary for degraded differential phase-shift keying communication systems. This paper proposes a regenerator based on semiconductor optical amplifier for differential phase-shift keying signals. The key regeneration mechanism is theoretically analysed. The effectiveness of semiconductor optical amplifier based regenerator is demonstrated by comparing the bit error rate and eye diagrams before and after regeneration for 40-Gbit/s differential phase-shift keying 1080-km transmission systems. The results show that regeneration effects are very well. Bit error rate is less than 10-12 with the regenerator.

关键词: differential phase-shift keying, regeneration, semiconductor optical amplifier, phase noise

Abstract: Phase and amplitude regeneration are necessary for degraded differential phase-shift keying communication systems. This paper proposes a regenerator based on semiconductor optical amplifier for differential phase-shift keying signals. The key regeneration mechanism is theoretically analysed. The effectiveness of semiconductor optical amplifier based regenerator is demonstrated by comparing the bit error rate and eye diagrams before and after regeneration for 40-Gbit/s differential phase-shift keying 1080-km transmission systems. The results show that regeneration effects are very well. Bit error rate is less than 10-12 with the regenerator.

Key words: differential phase-shift keying, regeneration, semiconductor optical amplifier, phase noise

中图分类号:  (Optical communication systems, multiplexers, and demultiplexers?)

  • 42.79.Sz
42.81.Wg (Other fiber-optical devices) 42.65.Sf (Dynamics of nonlinear optical systems; optical instabilities, optical chaos and complexity, and optical spatio-temporal dynamics)