High-pulse-energy mid-infrared optical parametric oscillator based on BaGa4Se7 crystal pumped at 1.064 μm

We have demonstrated a high-pulse-energy nanosecond mid-infrared optical parametric oscillator (OPO) based on the nonlinear crystal BaGa 4 Se 7 pumped by 1.064 µm Nd:YAG laser. The experimental OPO threshold of 7.97 MW/cm 2 was in good agreement with the theoretical calculation of 8.05 MW/cm 2 . The...

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Veröffentlicht in:Applied physics. B, Lasers and optics Lasers and optics, 2017-03, Vol.123 (3), p.1-6, Article 80
Hauptverfasser: Xu, Wen-Tao, Wang, Yu-ye, Xu, De-Gang, Li, Chao, Yao, Ji-Yong, Yan, Chao, He, Yi-Xin, Nie, Mei-tong, Wu, Yi-Cheng, Yao, Jian-quan
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Sprache:eng
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Zusammenfassung:We have demonstrated a high-pulse-energy nanosecond mid-infrared optical parametric oscillator (OPO) based on the nonlinear crystal BaGa 4 Se 7 pumped by 1.064 µm Nd:YAG laser. The experimental OPO threshold of 7.97 MW/cm 2 was in good agreement with the theoretical calculation of 8.05 MW/cm 2 . The maximum pulse energy of the idler wavelength was 2.56 mJ at 4.11 µm wavelength when the pump energy was 61.6 mJ, corresponding to an optical-to-optical conversion efficiency of 4.16%. The idler wavelength can be continuously tuned in the range from 3.12 to 5.16 µm.
ISSN:0946-2171
1432-0649
DOI:10.1007/s00340-016-6631-5