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Opt Express. 2011 Jun 20;19(13):12503-8. doi: 10.1364/OE.19.012503.

Channel waveguide lasers in Nd:GGG crystals fabricated by femtosecond laser inscription.

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1
School of Physics, Key Laboratory of Particle Physics and Particle Irradiation (MOE), Shandong University, Jinan 250100, China.

Abstract

Buried channel waveguides have been fabricated in Nd:GGG crystals by using the femtosecond laser inscription. The waveguides are confined between two filaments with propagation losses of 2.0 dB/cm. Stable continuous wave laser oscillation at ~1061 nm has been demonstrated at room temperature. Under 808 nm optical excitation, a pump threshold of 29 mW and a slope efficiency of 25% have been obtained.

PMID:
21716490
[Indexed for MEDLINE]
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