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Q-switched operation of an in-band-pumped Ho:LuAG laser with kilohertz pulse repetition frequency

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Abstract

We report continuous-wave (CW) and repetitively Q-switched operation of an in-band-pumped Ho:LuAG laser at room temperature. End-pumped by a Tm:YLF solid-state laser with emission wavelength of 1.91 μm, the CW Ho:LuAG laser generated 5.4-W output at 2100.7 nm with beam quality factor of M 2∼1.03 for an incident pump power of 14.1 W, corresponding to slope efficiency of 67% with respect to absorbed pump power. Up to 1.5-mJ energy per pulse at pulse repetition frequency (PRF) of 3 kHz and 4.5-W average power with FWHM pulse width of 28 ns at 5 kHz were demonstrated in repetitively Q-switched operation.

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Authors and Affiliations

  1. National Key Laboratory of Tunable Laser Technology, Harbin Institute of Technology, Harbin, 150001, China

    B.-Q. Yao, X.-M. Duan, L. Ke, Y.-L. Ju & Y.-Z. Wang

  2. Key Laboratory of Material Science and Technology for High Power Lasers, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, 201800, China

    G.-J. Zhao

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  1. B.-Q. Yao
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  2. X.-M. Duan
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  3. L. Ke
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  4. Y.-L. Ju
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  5. Y.-Z. Wang
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  6. G.-J. Zhao
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Correspondence to B.-Q. Yao.

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Yao, BQ., Duan, XM., Ke, L. et al. Q-switched operation of an in-band-pumped Ho:LuAG laser with kilohertz pulse repetition frequency. Appl. Phys. B 98, 311–315 (2010). https://doi.org/10.1007/s00340-009-3747-x

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  • DOI: https://doi.org/10.1007/s00340-009-3747-x

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