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Optics Letters

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  • Vol. 23, Iss. 1 — Jan. 1, 1998
  • pp: 28–30

Efficient resonant frequency doubling of a cw Nd:YAG laser in bulk periodically poled KTiOPO4

A. Arie, G. Rosenman, A. Korenfeld, A. Skliar, M. Oron, M. Katz, and D. Eger  »View Author Affiliations


Optics Letters, Vol. 23, Issue 1, pp. 28-30 (1998)
http://dx.doi.org/10.1364/OL.23.000028


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Abstract

A cw Nd:YAG laser was quasi-phase-matched frequency doubled by a bulk periodically poled flux-grown KTiOPO<sub>4</sub> crystal in an external resonant cavity. The conversion efficiency and the second-harmonic power with a pump of 225 mW were 55% and 123.5 mW, respectively. The loss of the 1-cm-long crystal, which operated near room temperature, was 1.3% and was dominated by scatter from the cleaved facets of the crystal. No damage, photorefractive or other, was observed at intensites of 370Wmm<sup>-2</sup> , but beam size had to be optimized to eliminate thermal-induced instabilities in the doubling cavity.

© 1998 Optical Society of America

OCIS Codes
(190.0190) Nonlinear optics : Nonlinear optics
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.4360) Nonlinear optics : Nonlinear optics, devices

Citation
A. Arie, G. Rosenman, A. Korenfeld, A. Skliar, M. Oron, M. Katz, and D. Eger, "Efficient resonant frequency doubling of a cw Nd:YAG laser in bulk periodically poled KTiOPO4," Opt. Lett. 23, 28-30 (1998)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-23-1-28


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