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Conferences > CLEO > 2010 > CMGG > CMGG1

Photo darkening of Ytterbium Fiber Lasers and Amplifiers

Kent E. Mattsson

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Abstract

Photo darkening (PD) of ytterbium co-doped silica fibers in lasers and amplifiers is experimentally investigated and a numeric model for PD is proposed. Relaxation to well-defined equilibrium state of core PD is observed both for unseeded amplifier and high power fiber laser operation, depending on the Yb inversion and output power flux.

© 2010 Optical Society of America

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