Thermal effects in high-power CW second harmonic generation in Mg-doped stoichiometric lithium tantalate

We investigated thermal behaviors of single-pass second-harmonic generation of continuous wave green radiation with high efficiency by quasi-phase matching in periodically poled Mg-doped stoichiometric lithium tantalate (PPMgSLT). Heat generation turned out to be directly related to the green light...

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Veröffentlicht in:	Optics express 2008-07, Vol.16 (15), p.11294-11299
Hauptverfasser:	Tovstonog, Sergey V, Kurimura, Sunao, Suzuki, Ikue, Takeno, Kohei, Moriwaki, Shigenori, Ohmae, Noriaki, Mio, Norikatsu, Katagai, Toshio
Format:	Artikel
Sprache:	eng
Schlagworte:	Computer Simulation Computer-Aided Design Equipment Design Equipment Failure Analysis Lasers Light Lithium - chemistry Magnesium - chemistry Materials Testing Models, Theoretical Oxides - chemistry Scattering, Radiation Tantalum - chemistry Temperature
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Beschreibung
Zusammenfassung:	We investigated thermal behaviors of single-pass second-harmonic generation of continuous wave green radiation with high efficiency by quasi-phase matching in periodically poled Mg-doped stoichiometric lithium tantalate (PPMgSLT). Heat generation turned out to be directly related to the green light absorption in the material. Strong relation between an upper limit of the second harmonic power and confocal parameter was found. Single-pass second-harmonic generation of 16.1 W green power was achieved with 17.6% efficiency in Mg:SLT at room temperature.
ISSN:	1094-4087 1094-4087
DOI:	10.1364/oe.16.011294