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Opt Lett. 2009 Dec 15;34(24):3881-3. doi: 10.1364/OL.34.003881.

Waveguide-saturable absorber fabricated by femtosecond pulses in YAG:Cr(4+) crystal for Q-switched operation of Yb-fiber laser.

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1
Photonics Research Group, Aston University, Birmingham, B4 7ET, UK. a.okhrimchuk@aston.ac.uk

Abstract

A waveguide-saturable absorber with low propagation loss is fabricated by femtosecond pulses in YAG:Cr(4+) crystal. Q-switch operation of a Yb fiber laser with the new saturable absorber having absorption saturation parameters similar to the bulk YAG:Cr(4+) crystal is demonstrated.

PMID:
20016645
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