83 W yellow-green laser at 556 nm from frequency-doubling of a Q-Switched Nd:YAG laser at 1112 nm in LBO |
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| Authors: | Z. C. Wang J. L. Xu Y. Bo Q. J. Peng S. Y. Xie Y. T. Xu F. Yang J. Y. Zhang D. F. Cui Z. Y. Xu |
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| Affiliation: | 1.Research Center for Laser Physics and Technology, Key Lab of Functional Crystal and Laser Technology, Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing,China;2.Graduate School of the Chinese Academy of Sciences,Beijing,China |
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| Abstract: | We demonstrate a high power 556 nm yellow-green laser by intracavity frequency doubled of the diode-pumped 1112 nm Nd:YAG laser in a symmetrical L-shaped flat-flat cavity. The coatings of the resonator mirrors were carefully designed to achieve efficient operation of fundamental wavelength of the laser at 1112 nm. By using a type-II phase matching LBO nonlinear crystal as the frequency-doubler, the maximum output power of the 556 nm laser was measured to be as high as 83 W with a pulse repetition frequency (PRF) of 10 kHz under incident pump power of 1150 W, corresponding to an optical-to-optical conversion efficiency of about 7.2%. The fluctuation of output power was less than 2% over 30 min. |
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