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Continuous-Wave and Pulsed Operation of a Ring Laser Cavity with The Ho:YLF and Ho:YAG Crystals

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Journal of Russian Laser Research Aims and scope

Abstract

We demonstrate a 2.5 m ring laser with the Ho:YAG and Ho:YLF crystals end-pumped by the Tmdoped fiber laser. In the Ho:YAG laser, the continuous-wave (CW) output power was 4.72 W at a wavelength of 2090.8 nm when the incident pump power was 21.5 W, which corresponded to a slope efficiency of 26.3%. For the Q-switched operation with the 100 Hz pulse repetition frequency (PRF), an output energy of 5.16 mJ and a pulse width of 125.6 ns were achieved at a pump power of 9.53 W. In the Ho:YLF laser, up to a 4.14 CW output power was realized under an incident pump power of 22.3 W, which corresponded to a slope efficiency of 27.3%. At the 100 Hz Q-switched operation, the output energy was 4 mJ and the corresponding pulse width was 165.4 ns, when the pump power was 9.86 W.

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Authors and Affiliations

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

    Yunpeng Wang, Xinyu Fang, Youlun Ju, Tongyu Dai & Dong Yan

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  1. Yunpeng Wang
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  2. Xinyu Fang
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  3. Youlun Ju
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  4. Tongyu Dai
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  5. Dong Yan
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Correspondence to Yunpeng Wang.

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Wang, Y., Fang, X., Ju, Y. et al. Continuous-Wave and Pulsed Operation of a Ring Laser Cavity with The Ho:YLF and Ho:YAG Crystals. J Russ Laser Res 41, 539–543 (2020). https://doi.org/10.1007/s10946-020-09908-3

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  • DOI: https://doi.org/10.1007/s10946-020-09908-3

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