We report an efficient mid-infrared optical parametric oscillator (OPO) pumped by a pulsed Tm,Ho-codoped GdVO4 laser. The 10-W Tm,Ho:GdVO4 laser pumped by a 801nm diode produces 20ns pulses with a repetition rate of 10kHz at wavelength of 2.048μm. The ZnGeP2 (ZGP) OPO produces 15-ns pulses in the spectral regions 3.65-3.8μm and 4.45-4.65μm simultaneously. More than 3W of mid-IR output power can be generated with a total OPO slope efficiency greater than 58% corresponding to incident 2μm pump power. The diode laser pump to mid-IR optical conversion efficiency is about 12%.
We report an efficient mid-infrared optical parametric oscillator (OPO) pumped by a pulsed Tm,Ho-codoped GdVO4 laser. The 10-W Tm,Ho:GdVO4 laser pumped by a 801nm diode produces 20ns pulses with a repetition rate of 10kHz at wavelength of 2.048μm. The ZnGeP2 (ZGP) OPO produces 15-ns pulses in the spectral regions 3.65-3.8μm and 4.45-4.65μm simultaneously. More than 3W of mid-IR output power can be generated with a total OPO slope efficiency greater than 58% corresponding to incident 2μm pump power. The diode laser pump to mid-IR optical conversion efficiency is about 12%.
YAO Bao-Quan;ZHU Guo-Li;JU You-Lun;WANG Yue-Zhu. A ZnGeP2 Optical Parametric Oscillator with Mid-IR Output Power 3W Pumped by a Tm,Ho:GdVO4 Laser[J]. 中国物理快报, 2009, 26(2): 24209-024209.
YAO Bao-Quan, ZHU Guo-Li, JU You-Lun, WANG Yue-Zhu. A ZnGeP2 Optical Parametric Oscillator with Mid-IR Output Power 3W Pumped by a Tm,Ho:GdVO4 Laser. Chin. Phys. Lett., 2009, 26(2): 24209-024209.
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2009, Vol. 26 
