High power solid state laser operating in continuous / pulse composite mode

Liu Lei; Wang Wentao; Wang Chao; Wang Gang; Liu Yang; Jia Youquan; Li Ning; Lv Kunpeng; Chen Lu

doi:10.11884/HPLPB202234.210292

Volume 34 Issue 3

Jan. 2022

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Article Navigation > High Power Laser and Particle Beams > 2022 > 34(3): 031007

Liu Lei, Wang Wentao, Wang Chao, et al. High power solid state laser operating in continuous / pulse composite mode[J]. High Power Laser and Particle Beams, 2022, 34: 031007. doi: 10.11884/HPLPB202234.210292

Citation:

Liu Lei, Wang Wentao, Wang Chao, et al. High power solid state laser operating in continuous / pulse composite mode[J]. High Power Laser and Particle Beams, 2022, 34: 031007. doi: 10.11884/HPLPB202234.210292

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High power solid state laser operating in continuous / pulse composite mode

doi: 10.11884/HPLPB202234.210292

Science and Technology on Solid-State Laser Laboratory, North China Research Institute of Electro Optics, Beijing 100015, China

Received Date: 2021-07-15
Rev Recd Date: 2021-11-25

Available Online: 2021-12-07

Publish Date: 2022-01-13

Abstract

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.
- continuous / pulse,
- time domain,
- high power laser,
- laser amplification chain,
- high repetition frequency

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References(9)

References

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