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Q-switched operation of a-cut Ho:YAlO3 laser pumped by a diode-pumped 1.91 μm thulium laser

  • Solid State and Liquid Lasers
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Laser Physics

Abstract

Q-switched operation of a room temperature Ho:YAP laser was resonantly end-pumped by a diode-pumped Tm:YLF laser at 1.91 μm. The CW Ho:YAP laser generated 9.9 W of linearly output at 2119.03 nm with beam quality factor of M 2 ∼1.46 with respect to absorbed pump power of 19.16 W, corresponding to an optical-to-optical conversion efficiency of 51.7% and slope efficiency of 60.6%. Under Q-switched operation, the maximum output power of 9.8 W in relation to 10 kHz pulse repetition frequency (PRF) was obtained, however, the maximum peak power of 60 kW at the PRF of 5 kHz was demonstrated. At 5 kHz pulse energies of 1.92 mJ with pulse width of 32 ns was achieved.

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Authors and Affiliations

  1. National Key Laboratory of Tunable Laser Technology, Harbin Institute of Technology, Harbin, 15001, China

    Y. J. Shen, B. Q. Yao, X. M. Duan, Y. L. Ju & Y. Z. Wang

Authors
  1. Y. J. Shen
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  2. B. Q. Yao
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  3. X. M. Duan
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  4. Y. L. Ju
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  5. Y. Z. Wang
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Corresponding author

Correspondence to B. Q. Yao.

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Original Text © Astro, Ltd., 2012.

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Shen, Y.J., Yao, B.Q., Duan, X.M. et al. Q-switched operation of a-cut Ho:YAlO3 laser pumped by a diode-pumped 1.91 μm thulium laser. Laser Phys. 22, 661–663 (2012). https://doi.org/10.1134/S1054660X12040184

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  • DOI: https://doi.org/10.1134/S1054660X12040184

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