• High Power Laser and Particle Beams
  • Vol. 34, Issue 3, 031007 (2022)
Lei Liu, Wentao Wang*, Chao Wang, Gang Wang, Yang Liu, Youquan Jia, Ning Li, Kunpeng Lv, and Lu Chen
Author Affiliations
  • Science and Technology on Solid-State Laser Laboratory, North China Research Institute of Electro Optics, Beijing 100015, China
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    DOI: 10.11884/HPLPB202234.210292 Cite this Article
    Lei Liu, Wentao Wang, Chao Wang, Gang Wang, Yang Liu, Youquan Jia, Ning Li, Kunpeng Lv, Lu Chen. High power solid state laser operating in continuous / pulse composite mode[J]. High Power Laser and Particle Beams, 2022, 34(3): 031007 Copy Citation Text show less

    Abstract

    Conventional high-power lasers operate in either continuous wave or long pulse mode. They interact with materials mainly through heating, whose effects are very limited when working with complex targets. We propose a novel high-power laser technology based on the combinations of continuous and pulse lasers with adjustable pulse widths and repetition frequencies. Such a “heating/shock” function can be used to improve the effect of high-power laser by aiming the best time-domain eigenvalues of melting and gasification of various target materials. We have achieved output power of 4800 W with 3600 W from continuous wave operation and 1200 W from pulsed operation with repetition rate of 10 kHz and pulse width of 3.6 ns. When the repetition rate is increased to 100 Hz, the resultant output power of the 7 ns pulsed laser is 1820 W, while the power of the continuous laser is 3100 W, and the beam quality is 4.8 times of the diffraction limit.
    Lei Liu, Wentao Wang, Chao Wang, Gang Wang, Yang Liu, Youquan Jia, Ning Li, Kunpeng Lv, Lu Chen. High power solid state laser operating in continuous / pulse composite mode[J]. High Power Laser and Particle Beams, 2022, 34(3): 031007
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