中国物理B ›› 2005, Vol. 14 ›› Issue (2): 372-377.doi: 10.1088/1009-1963/14/2/026

• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇    下一篇

Behaviour of a wideband double-pass discrete Raman amplifier with simultaneous reflection of signals and multi-pump

王著元, 崔一平   

  1. Department of Electronic Engineering, Southeast University, Nanjing 210096, China
  • 收稿日期:2004-05-21 修回日期:2004-06-15 出版日期:2005-03-02 发布日期:2005-03-02
  • 基金资助:
    Project supported by the National Science Foundation of China for Distinguished Young Scholars through (Grant No 60125513).

Behaviour of a wideband double-pass discrete Raman amplifier with simultaneous reflection of signals and multi-pump

Wang Zhu-Yuan (王著元), Cui Yi-Ping (崔一平)   

  1. Department of Electronic Engineering, Southeast University, Nanjing 210096, China
  • Received:2004-05-21 Revised:2004-06-15 Online:2005-03-02 Published:2005-03-02
  • Supported by:
    Project supported by the National Science Foundation of China for Distinguished Young Scholars through (Grant No 60125513).

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摘要： The behaviour of a high efficient double-pass discrete Raman amplifier with 80nm bandwidth was studied theoretically and experimentally. In this Raman amplifier, by using a one-end gilt fibre as the broadband reflector,signals and multi-pump are simultaneously reflected to propagate through the gain fibre for a second time in the opposite direction of the input. An increase in net gain of more than 150% has been achieved compared with that in the typical co-pumped Raman amplifier. The advantages of this new configuration have been studied by comparing with the currently existing Raman amplifier configurations. Also, the influencing factors for the gain increase have been analysed, including the pump-to-pump Raman interactions and the length of gain fibre.

Abstract: The behaviour of a high efficient double-pass discrete Raman amplifier with 80nm bandwidth was studied theoretically and experimentally. In this Raman amplifier, by using a one-end gilt fibre as the broadband reflector,signals and multi-pump are simultaneously reflected to propagate through the gain fibre for a second time in the opposite direction of the input. An increase in net gain of more than 150% has been achieved compared with that in the typical co-pumped Raman amplifier. The advantages of this new configuration have been studied by comparing with the currently existing Raman amplifier configurations. Also, the influencing factors for the gain increase have been analysed, including the pump-to-pump Raman interactions and the length of gain fibre.

Key words: discrete Raman amplifiers, double-pass, reflection, net gain

中图分类号:  (Amplifiers)

  • 84.30.Le
42.60.Da (Resonators, cavities, amplifiers, arrays, and rings)