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High Power Er-doped Yb-free Double-Clad Fiber Amplifiers

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Abstract

We present simple and efficient laser schemes based on newly developed Er-doped fibers cladding pumped at 976 nm. 103 W CW-power amplifier with 37 % conversion efficiency and 1.5 mJ-pulse energy nanosecond laser were demonstrated.

© 2014 Optical Society of America

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