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A novel Raman-gain control method by detecting the Rayleigh backscattering of pump lights

Hiroji Masuda, Yutaka Miyamoto, and Masahito Tomizawa

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Abstract

We report a novel Raman-gain control method with a simple setup in distributed Raman amplification systems. The method keeps Raman gain completely constant regardless of the variations in connector- and fusion-splicing losses by detecting the Rayleigh backscattering of multi-wavelength pump lights.

© 2003 Optical Society of America

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