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Long-distance optical fiber transmission system based on hybrid Raman amplification

Li Li Jia Xin-Hong Ran Zeng-Ling Zhang Tian-Hu Rao Yun-Jiang

Long-distance optical fiber transmission system based on hybrid Raman amplification

Li Li, Jia Xin-Hong, Ran Zeng-Ling, Zhang Tian-Hu, Rao Yun-Jiang
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  • Received Date:  10 July 2009
  • Accepted Date:  29 September 2009
  • Published Online:  15 July 2010

Long-distance optical fiber transmission system based on hybrid Raman amplification

  • 1. (1)Key Laboratory of Broadband Optical Fiber Transmission & Communication Networks of Ministry of Education, University of Electronic Science & Technology of China, Chengdu 610054, China; (2)Key Laboratory of Broadband Optical Fiber Transmission & Communication Networks of Ministry of Education, University of Electronic Science & Technology of China, Chengdu 610054, China; Key Laboratory of Opto-Electronic Technology & Systems of Ministry of

Abstract: A novel modified method for realizing long-distance self-adaptive compensation optical fiber transmission is proposed. Based on the hybrid Raman amplification achieved by combining the original bi-directional Raman pump with a second Raman amplification generated by a fiber laser formed by a fiber Bragg grating pair with high reflectivity, the signal light is amplified effectively and the longest self-adaptive compensation optical fiber transmission distance of 125 km is achieved in experiment for the first time, to the best of our knowledge. In addition, the ON/OFF gain, amplified spontaneous emission noise, noise figure and the signal power distribution characteristics of the system are studied experimentally and theoretically. The experimental results are in good agreement with the theoretical analysis.

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