Novel design of Raman amplifier pump module

Xinda Yin; Wanhui He; Chengpeng Fu

doi:10.1117/12.523498

12 May 2004 Novel design of Raman amplifier pump module

Xinda Yin, Wanhui He, Chengpeng Fu

Proceedings Volume 5280, Materials, Active Devices, and Optical Amplifiers; (2004) https://doi.org/10.1117/12.523498
Event: Asia-Pacific Optical and Wireless Communications, 2003, Wuhan, China

Abstract

Raman amplifier is one of enabler technologies for next generation optic communication system, especially for 40Gbit/s based system. To get wide commercial application, however, there are several obstacles that should be overcome. Main problems of distributed Raman amplifier include reliable and low cost design, safety operation, automatic gain control, signal power monitoring and so on. For Raman gain is relevant to relative polarization state between pump light and signal light over fiber, two pumps with same wavelength and same power but perpendicular polarization state are often required. In general, this will lead to more components, high cost, complexity and big size. On the other hand, this will limit the number of pump wavelength that can be used, and limit Raman amplifier's performance. For the first time, we invented two kind of key component to solve the problem thoroughly, one component is micro optic depolarizer, and another is depolarizer-isolated PBC hybrid component. Based on these two key component, we demonstrated a novel flexible and low cost structure design of Raman pump module. We also test new Raman pump module, which show low DOP and very low PDG gain in backward or forward pumping scheme.

Citation Download Citation

Xinda Yin, Wanhui He, and Chengpeng Fu "Novel design of Raman amplifier pump module", Proc. SPIE 5280, Materials, Active Devices, and Optical Amplifiers, (12 May 2004); https://doi.org/10.1117/12.523498

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