Cavity-enhanced generation of 6 W cw second-harmonic power at 532 nm in periodically-poled MgO:LiTaO_3
作者： Iolanda Ricciardi , Maurizio De Rosa , Alessandra Rocco , Pietro Ferraro , Paolo De Natale
DOI: 10.1364/OE.18.010985
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摘要: We report on efficient cw high-power second harmonic generation in a periodically poled LiTaO3 crystal placed resonant enhancement cavity. tested three configurations, differing the coupling mirror reflectivity, and maximum conversion efficiency of about 76%, corresponding to 6.1 W green light with 8.0 fundamental power, was achieved. This is, best our knowledge, highest power ever reported using periodically-poled an external observed photo-thermal effect induced by photon absorption at mirrors crystal, which however does not affect stable operation A further arises for two out higher values input degrades performance locked suggest this is due onset competing nonlinearities same crystal.
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