15 February 2018 90° phase-matched Hg0.35Cd0.65Ga2S4 optical parametric oscillator pumped by a Nd:YAG laser
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Abstract
This paper reports the 90°phase-matched Hg0.35Cd0.65Ga2S4 optical parametric oscillator (OPO) pumped by a Nd:YAG laser at 1.0642 μm in the 8.24-9.40 μm range. The resulting data for the temperature tuning curves of the two idler wavelengths were found to agree well with the theoretical values calculated with the Sellmeier and thermo-optic dispersion formulas constructed from those of HgGa2S4 and CdGa2S4 presented in our previous paper (K. Kato et al. Opt. Commun. 386, 49-52, (2017)). The OPO threshold was ~ 0.3 W, which is 57% lower than ~ 0.7 W observed for the 8-mm-long HgGa2S4 crystal.
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Nobuhiro Umemura, Nobuhiro Umemura, Valentin Petrov, Valentin Petrov, Takuya Okamoto, Takuya Okamoto, Kiyoshi Kato, Kiyoshi Kato, } "90° phase-matched Hg0.35Cd0.65Ga2S4 optical parametric oscillator pumped by a Nd:YAG laser", Proc. SPIE 10516, Nonlinear Frequency Generation and Conversion: Materials and Devices XVII, 1051619 (15 February 2018); doi: 10.1117/12.2288623; https://doi.org/10.1117/12.2288623
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