Temperature-Dependent Sellmeier Equation for Refractive Index of 1.0 mol % Mg-Doped Stoichiometric Lithium Tantalate
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概要
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Mg-doped stoichiometric lithium tantalate (SLT) is a promising material in high power generation, due to its high thermal conductivity. The accuracy of the temperature-dependent Sellmeier equation for Mg-doped SLT is important for designing high-power-frequency converters. We propose a temperature-dependent Sellmeier equation for the extraordinary refractive index of 1.0 mol % Mg-doped SLT. The equation is fitted with measured data in the first-order quasi-phase-matched (QPM) second harmonic generation (SHG) and optical parametric oscillation (OPO) with the fundamental and pump wavelengths being both 1.064 μm and previously published data [Jpn. J. Appl. Phys. 41 (2002) 465] of SLT. The equation allows us to predict accurate QPM periods in the range of 0.5--4 μm wavelength and in temperature range of 30--170 °C.
- 2013-03-25
著者
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Shoji Ichiro
Department Of Applied Physics The University Of Tokyo
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Lim Hwan
National Institute for Material Science (NIMS), Tsukuba, Ibaraki 305-0044, Japan
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Kurimura Sunao
National Institute for Material Science (NIMS), Tsukuba, Ibaraki 305-0044, Japan
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Katagai Toshio
Department of Electrical, Electronic, and Communication Engineering, Chuo University, Bunkyo, Tokyo 112-8551, Japan
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