Efficient resonant frequency doubling of a cw Nd:YAG laser in bulk periodically poled KTiOPO(4).
Opt Lett
; 23(1): 28-30, 1998 Jan 01.
Article
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| MEDLINE
| ID: mdl-18084401
ABSTRACT
A cw NdYAG laser was quasi-phase-matched frequency doubled by a bulk periodically poled flux-grown KTiOPO(4) 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(-2) , but beam size had to be optimized to eliminate thermal-induced instabilities in the doubling cavity.
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Bases de datos:
MEDLINE
Idioma:
En
Revista:
Opt Lett
Año:
1998
Tipo del documento:
Article