20-kHz watt-level green laser with LGS crystal electro-optic Q-switch |
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| Authors: | Hao Tang Xiaolei Zhu Junqing Meng Huaguo Zang |
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| Institution: | Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai Key Laboratory of All Solid-State Laser and Applied Techniques,Shanghai 201800,China |
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| Abstract: | A diode-end-pumped electro-optic(EO)Q-switched green laser operating at the repetition rate of 20 kHz is reported.A block of La3Ga5SiO14(LGS)single crystal is used as a Q-switch and the type I phasematching LiB3O5(LBO)is used as the nonlinear crystal in the second harmonic generation.The 2.3-W average power of 532-nm green laser is obtained at the repetition rate of 20 kHz with the pulse width as short as 10 ns.When the output power is about 1.5 W,the measured power fluctuation is less than 1.4% (root-mean-square,RMS)with the beam quality factor of M2 ＜ 2 in both orthogonal directions. |
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