KYW crystal as a new material for acousto-optic Q-switches

Konstantin B. Yushkov; Alexander I. Chizhikov; Natalya F. Naumenko; Vladimir Ya. Molchanov; Anatoly A. Pavlyuk; Elena V. Makarevskaya; Nikita G. Zakharov

doi:10.1117/12.2503776

4 March 2019 KYW crystal as a new material for acousto-optic Q-switches

Konstantin B. Yushkov, Alexander I. Chizhikov, Natalya F. Naumenko, Vladimir Ya. Molchanov, Anatoly A. Pavlyuk, Elena V. Makarevskaya, Nikita G. Zakharov

Author Affiliations +

Proceedings Volume 10899, Components and Packaging for Laser Systems V; 1089913 (2019) https://doi.org/10.1117/12.2503776
Event: SPIE LASE, 2019, San Francisco, California, United States

Abstract

We designed a high-efficient acousto-optic Q-switch based on a potassium yttrium tungstate crystal (KY(WO₄)₂), or KYW. Isotropic acousto-optic interaction along N_mN_g plane of dielectric axes of the crystal was used. The Q-switch operated at the wavelength of 2.1 μm of a Ho:YAG laser with the diffraction efficiency over 60% at the RF driving power of 20 W. No laser damage of the crystal with antireflection coatings was observed at 12 J/cm² fluence for nanosecond pulses.

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Citation Download Citation

Konstantin B. Yushkov, Alexander I. Chizhikov, Natalya F. Naumenko, Vladimir Ya. Molchanov, Anatoly A. Pavlyuk, Elena V. Makarevskaya, and Nikita G. Zakharov "KYW crystal as a new material for acousto-optic Q-switches", Proc. SPIE 10899, Components and Packaging for Laser Systems V, 1089913 (4 March 2019); https://doi.org/10.1117/12.2503776

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