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100 W Ho : YLF Slab Laser with Two Crystals End-Pumped by a Tm:YAP Laser

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Journal of Russian Laser Research Aims and scope

Abstract

We demonstrate a high-power Ho :YLF slab laser with two crystals inside a single resonator pumped by a Tm:YAP slab laser. At an incident pump power of 218 W, this device produces a maximum continuous-wave output power of 100 W at ∼2064 nm, with a slope efficiency and an optical conversion efficiency of 57.5% and 49.9%, respectively. Furthermore, we investigate the output performance for various output couplers with a fixed cavity length of 190 mm. At an output power of 60 W, the beam quality factor M2 is 85 in the x direction and 1.2 in the y direction. Moreover, we develop a theoretical model to analyze the temperature distribution in the Ho :YLF slab crystals.

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Authors and Affiliations

  1. School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China

    Qunlong Long & Yong He

  2. Qian Xuesen Laboratory of Space Technology, China Academy of Space Technology, Beijing, 100094, China

    Qunlong Long, Jimeng Gao, Qingchen Wang & Lei Wang

  3. School of Information Science and Engineering, Yanshan University, Qinhuangdao, 066004, China

    Jimeng Gao & Qingchen Wang

  4. China Academy of Aerospace Science and Innovation, Beijing, 100176, China

    Yefei Mao

Authors
  1. Qunlong Long
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  2. Jimeng Gao
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  3. Qingchen Wang
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  4. Lei Wang
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  5. Yong He
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  6. Yefei Mao
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Correspondence to Yong He.

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Long, Q., Gao, J., Wang, Q. et al. 100 W Ho : YLF Slab Laser with Two Crystals End-Pumped by a Tm:YAP Laser. J Russ Laser Res 44, 206–212 (2023). https://doi.org/10.1007/s10946-023-10125-x

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  • DOI: https://doi.org/10.1007/s10946-023-10125-x

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