24 August 2006 Influence of photorefractive effect on optical parametric oscillator's properties in periodically poled Mg-doped stoichiometric LiTaO3
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Abstract
Undoped and Mg-doped stoichiometric LiTaO3 with concentrations of 0.5, 0.7, and 1.0 mol % were grown by the double-crucible Czochralski method, and their photorefractive effect was investigated by measuring light-induced birefringence changes. Periodically poled Mg-doped stoichiometric lithium tantalate (PPMgSLT) were fabricated for QPM optical parametric oscillator, whose properties, including slope efficiency and threshold, were measured to investigate influence of photorefractive effect on optical parametric oscillator. The results showed that a concentration of 1 mol % MgO in the melt was enough to suppress photorefractive effect at tens of MW/cm2, and the OPO performance of PPMgSLT doped with 0.5 mol % MgO is only 6 % lower than that of PPMgSLT doped with 1 mol % MgO at room temperature, even though light-induced birefringence existed for the crystal doped with 0.5 mol % MgO.
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Youwen Liu, Yannan Yan, Haixia Ma, Suno Kurimura, Shunji Takekawa, Masaru Nakamura, Kenji Kitamura, "Influence of photorefractive effect on optical parametric oscillator's properties in periodically poled Mg-doped stoichiometric LiTaO3", Proc. SPIE 6314, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications XII, 63141W (24 August 2006); doi: 10.1117/12.683774; https://doi.org/10.1117/12.683774
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