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Efficient Continuous-Wave Diode-Pumped Ho :GTO Laser with a Pump Recycling Scheme

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Journal of Russian Laser Research Aims and scope

Abstract

We demonstrate a novel continuous-wave 2.1 μm Ho :GTO laser pumped by a laser diode. Employing a pump recycling scheme and 30% output transmittance, we obtain an output power of 4.76 W and a single oscillating peak of 2068.4 nm with a slope efficiency of 55.3% with respect to the absorbed pump power. In addition, the M2 factor of the Ho :GTO laser is reckoned to be approximately 1.3 at the maximum output power.

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Authors and Affiliations

  1. Key Laboratory for Photonic and Electronic Bandgap Materials Ministry of Education, School of Physics and Electronic Engineering Harbin Normal University, Harbin, China

    Wensheng Zhang, Linjun Li, Sheng Zhou & Hong Gao

  2. The Higher Educational Key Laboratory for Measuring & Control Technology and Instrumentations of Heilongjiang Province, Harbin University of Science and Technology, Harbin, China

    Linjun Li

Authors
  1. Wensheng Zhang
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  2. Linjun Li
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  3. Sheng Zhou
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  4. Hong Gao
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Correspondence to Wensheng Zhang.

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Zhang, W., Li, L., Zhou, S. et al. Efficient Continuous-Wave Diode-Pumped Ho :GTO Laser with a Pump Recycling Scheme. J Russ Laser Res 41, 94–97 (2020). https://doi.org/10.1007/s10946-020-09852-2

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  • DOI: https://doi.org/10.1007/s10946-020-09852-2

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