| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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A Mid-IR Optical Parametric Oscillator Pumped by an Actively Q-Switched Ho:YAG Ceramic Laser |
| YUAN Jin-He1, DUAN Xiao-Ming1, YAO Bao-Quan1**, LI Jiang2**, SHEN Ying-Jie1, CUI Zheng1, DAI Tong-Yu, PAN Yu-Bai2 |
1National Key Laboratory of Tunable Laser Technology, Harbin Institute of Technology, Harbin 150001
2Key Laboratory of Transparent and Opto-functional Advanced Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050
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YUAN Jin-He, DUAN Xiao-Ming, YAO Bao-Quan et al 2015 Chin. Phys. Lett. 32 084204 |
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Abstract We demonstrate a mid-IR ZnGeP2 (ZGP) optical parametric oscillator (OPO) pumped by a dual-end-pumped actively acousto-optic Q-switched Ho:YAG ceramic laser. The maximum average output power of 35 W is obtained at a pulse repetition frequency of 20 kHz from the Ho:YAG ceramic laser. Under the maximum incident pump power of Ho:YAG ceramic laser, the maximum output power of 14 W is obtained from the ZGP OPO, corresponding to the slope efficiency of 49.6% with respect to the incident pump power. The wavelength can be tuned from 3.5 μm to 4.2 μm (signal), corresponding to 5.2–4.1 μm (idler). The beam quality M2 is less than 2.3 from the ZGP OPO.
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Received: 16 May 2015
Published: 02 September 2015
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