A compact and efficient 4.25 μm BaGa4Se7 optical parametric oscillator  

作　　者：Minqiang Kang Ying Deng Xiongwei Yan Xiaoming Zeng Yangwu Guo Jiyong Yao Fa Zeng Jiangang Zheng Kainan Zhou Chongbing Qu Jingqin Su Qihua Zhu 康民强;邓颖;严雄伟;曾小明;郭扬武;姚吉勇;曾发;郑建刚;周凯南;瞿崇兵;粟敬钦;朱启华(Research Center of Laser Fusion,China Academy of Engineering Physics,Mianyang 621900,China;Collaborative Innovation Center of IFSA(CICIFSA),Shanghai Jiao Tong University,Shanghai 200240,China;Science and Technology on Plasma Physics Laboratory,Mianyang 621900,China;Center for Crystal Research and Development,Key Laboratory of Functional Crystals and Laser Technology,Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing 100190,China;Graduate School of China Academy of Engineering Physics,Beijing 100088,China)

机构地区：[1]Research Center of Laser Fusion,China Academy of Engineering Physics,Mianyang 621900,China [2]Collaborative Innovation Center of IFSA(CICIFSA),Shanghai Jiao Tong University,Shanghai 200240,China [3]Science and Technology on Plasma Physics Laboratory,Mianyang 621900,China [4]Center for Crystal Research and Development,Key Laboratory of Functional Crystals and Laser Technology,Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing 100190,China [5]Graduate School of China Academy of Engineering Physics,Beijing 100088,China

出　　处：《Chinese Optics Letters》2019年第12期49-52,共4页中国光学快报（英文版）

基　　金：supported by the Science and Technology on Plasma Physics Laboratory(No.6142A04030403);the Innovation Fund of the Chinese Academy of Sciences(No.CXJJ-17-M164)

摘　　要：We report an efficient mid-infrared extracavity optical parametric oscillator(OPO)based on the nonlinear crystal BaGa4Se7 pumped by a diode-side-pumped Q-switched Nd:Y3 Al5O12(Nd:YAG)laser.The maximum pulse energy of 1.03mJ at 4.25μm is obtained with the repetition rate of 10 Hz and pulse width of 12.6 ns when the pump energy was 13.5mJ,corresponding to an optical-to-optical conversion efficiency of 7.6% from 1.064μm to 4.25μm.The idler wave slope conversion efficiency was 12%.To the best of our knowledge,it is the highest reported conversion efficiency for the compact BaGa4Se7 OPO driven by the Nd:YAG laser.We report an efficient mid-infrared extracavity optical parametric oscillator（OPO） based on the nonlinear crystal BaGa4Se7 pumped by a diode-side-pumped Q-switched Nd:Y3 Al5O12（Nd:YAG） laser. The maximum pulse energy of 1.03 mJ at 4.25 μm is obtained with the repetition rate of 10 Hz and pulse width of 12.6 ns when the pump energy was 13.5 m J, corresponding to an optical-to-optical conversion efficiency of 7.6% from 1.064 μm to 4.25 μm. The idler wave slope conversion efficiency was 12%. To the best of our knowledge, it is the highest reported conversion efficiency for the compact BaGa4Se7 OPO driven by the Nd:YAG laser.

关 键 词：ND:YAG PUMPED OPTICAL 

分 类 号：TN753.91[电子电信—电路与系统]