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60 W yellow laser at 561 nm by intracavity frequency doubling of a diode-pumped Q-switched Nd:YAG laser
Authors:Zhichao Wang  Qinjun Peng  Yong Bo  Shiyong Xie  Chaoyang Li  Yiting Xu  Feng Yang  Jialin Xu  Jingyuan Zhang  Dafu Cui  Zuyan Xu
Institution:1. Research Center for Laser Physics and Technique, Key lab of functional crystal and laser technology, Technical institute of physics and chemistry, Chinese Academy of Sciences, Beijing 100190, China;2. Graduate School of the Chinese Academy of Sciences, Beijing 100190, China;1. Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, B?ehová 7, 115 19 Prague 1, Czech Republic;2. Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilova 38, 119991 Moscow, Russian Federation;1. School of Science, Changchun University of Science and Technology, Changchun 130022, China;2. State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033,China;1. Key Lab of Solid State Laser, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China;2. Key Lab of Functional Crystal and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China;3. University of Chinese Academy of Sciences, Beijing 100190, China;1. Jiangsu Key Laboratory of Advanced Laser Materials and Devices, Jiangsu Normal University, Xuzhou, 221116, China;2. College of Physics and Electronic Information, Wenzhou University, Wenzhou, 325035, China;3. Crystech Inc., Qingdao, 266100, China
Abstract:A high-power yellow laser was achieved by intracavity frequency doubling of a diode-pumped Nd:YAG rod laser. A solid etalon was inserted into the resonator to implement efficient operation of the low-gain single line at 1123 nm transition. By using a LBO crystal inside the cavity as the frequency doubler, the maximum output power of the 561 nm yellow laser was obtained to be as high as 60.3 W with a pulse repetition frequency of 6 kHz, corresponding to an optical-to-optical conversion efficiency of about 6.1%. The output power fluctuation of the yellow laser was measured to be better than 3% in half an hour.
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