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High-efficiency CW and passively Q-switched operation of a 2050 nm L-shaped Tm3+:Y2O3 ceramic laser in-band fiber-laser pumped at 1670 nm

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Abstract

A Tm3+:Y2O3 ceramic laser with the L-shaped cavity in-band pumped by a fiber laser at 1670 nm was studied in the CW and passively Q-switched regimes. The CW laser was tunable in the range between 2046 and 2054 nm. The output power reached up to 4.9 W and the average slope efficiency was 75% in the high-quality single-transverse-mode beam The highest CW output power in the multi-transverse-mode beam was 12 W. A Cr2+:ZnSe saturable absorber was used to achieve the Q-switched operation at 2051 nm with the average power of up to 1.3 W in the single transverse mode, at the pulse repetition rate of 2–10 kHz and the pulse width of 80–150 ns.

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Funding

This research was supported by the Russian Foundation for Basic Research (Grant № 19-32-50094/19) and the Ministry of Science and Higher Education of the Russian Federation, state assignment for the Institute of Applied Physics RAS (project № 0035-2019-0012).

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Authors and Affiliations

  1. Institute of Applied Physics of the Russian Academy of Sciences (IAP RAS), 46 Ulyanov St., Nizhny Novgorod, 603950, Russia

    O. L. Antipov & Yu. A. Getmanovskiy

  2. Nizhny Novgorod State University, 23 Gagarin Av., Nizhny Novgorod, 603950, Russia

    O. L. Antipov & A. A. Dobrynin

  3. Nizhny Novgorod State Technical University, 24 Minin St., Nizhny Novgorod, 603950, Russia

    Yu. A. Getmanovskiy

  4. School of Physics and Electronic Engineering, Jiangsu Key Laboratory of Advanced Laser Materials and Devices, Jiangsu Normal University, Xuzhou, 221116, China

    H. T. Huang, D. Y. Shen & J. Wang

  5. Institute of Chemistry of High-Purity Substances of the Russian Academy of Sciences (IChHPS RAS), 49 Tropinin St., Nizhny Novgorod, 603951, Russia

    S. S. Balabanov

Authors
  1. O. L. Antipov
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  2. Yu. A. Getmanovskiy
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  3. A. A. Dobrynin
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  4. H. T. Huang
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  5. D. Y. Shen
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  6. J. Wang
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  7. S. S. Balabanov
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Correspondence to O. L. Antipov.

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Antipov, O.L., Getmanovskiy, Y.A., Dobrynin, A.A. et al. High-efficiency CW and passively Q-switched operation of a 2050 nm L-shaped Tm3+:Y2O3 ceramic laser in-band fiber-laser pumped at 1670 nm. Appl. Phys. B 127, 77 (2021). https://doi.org/10.1007/s00340-021-07627-4

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