Automatic control algorithm of Raman amplifiers

Xuliang Zhang; Zhangwei Yu

doi:10.1117/12.580990

11 February 2005 Automatic control algorithm of Raman amplifiers

Xuliang Zhang, Zhangwei Yu

Proceedings Volume 5625, Optical Transmission, Switching, and Subsystems II; (2005) https://doi.org/10.1117/12.580990
Event: Asia-Pacific Optical Communications, 2004, Beijing, China

Abstract

An automatic control algorithm considering the pump interaction for flattening the gain of a fiber Raman amplifier is derived from the Raman scattering equations. A pseudo-inverse gain matrix is introduced to adjust the powers of the pump lasers. The pump-to-pump interaction is compensated by the pump coefficients. It is demonstrated experimentally that the convergence of this algorithm is faster than that of the algorithm without considering the pump-to-pump interaction. In a system with 50-km SMF and 13.4km DCF, flattened Raman gain 15dB with a fluctuation no more than 0.40dB over a 45-nm bandwidth and 26dB with a fluctuation less than 0.8dB are realized in the experiment.

Citation Download Citation

Xuliang Zhang and Zhangwei Yu "Automatic control algorithm of Raman amplifiers", Proc. SPIE 5625, Optical Transmission, Switching, and Subsystems II, (11 February 2005); https://doi.org/10.1117/12.580990

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