Acta Optica Sinica, Volume. 42, Issue 9, 0914002(2022)

Theoretical and Experimental Research on 100 kHz Cavity-Dumped Thin-Disk Laser

Jing Dong1, Hantian Chen1, Hailin Wang1、*, Guangzhi Zhu1, Aleksei Kozlov2, and Xiao Zhu1
Author Affiliations
  • 1School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China
  • 2POLYUS Research Institute of M.F. Stelmakh Joint Stock Company, Moscow 117342, Russia
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    Figures & Tables(12)
    Spontaneous emission light model of thin disk
    Yb∶YAG energy level diagram and corresponding spectral lines
    Schematic of iterative solution of rate equation
    Theoretical calculation results. (a) Variation of population in upper energy level with time; (b) variation of number of photons with time; (c) output pulse waveform
    Experimental setup of cavity-dumped thin disk laser
    Output power characteristics for different pump powers and different gate time (numbers in figure are pump powers)
    Output waveforms under 253 W output power. (a) Single pulse waveform; (b) output pulse waveform of multiple cycles; (c) spectrum of output laser
    Period doubling output waveform under longer Pockels cell gate time
    Output pulse energy bifurcation diagrams when pump power is set to 521 W. (a) Theoretical simulation result; (b) experimental measurement result
    Multi-pulse trigger waveforms under different gate time when pump power is set to 521 W
    Measured beam quality
    • Table 1. Parameters used in model calculation

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      Table 1. Parameters used in model calculation

      ParameterSymbolValue
      Disk thickness /μmL180
      Doping concentration /%-6.5
      Pump spot diameter /mmD4.6
      Emission cross section /cm2σl1.92×10-20
      Absorption efficiency /%ηabs87
      Round trip time /nsTrt8.2
      Cavity lossα0.042
      Repetition rate /kHzf100
      Switch fall time /nsTf10
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    Jing Dong, Hantian Chen, Hailin Wang, Guangzhi Zhu, Aleksei Kozlov, Xiao Zhu. Theoretical and Experimental Research on 100 kHz Cavity-Dumped Thin-Disk Laser[J]. Acta Optica Sinica, 2022, 42(9): 0914002

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    Paper Information

    Category: Lasers and Laser Optics

    Received: Oct. 8, 2021

    Accepted: Nov. 25, 2021

    Published Online: May. 21, 2022

    The Author Email: Wang Hailin (wanghl@hust.edu.cn)

    DOI:10.3788/AOS202242.0914002

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