Chinese Journal of Lasers, Volume. 47, Issue 6, 601010(2020)

Numerical Research on Microchannel Cooling Structure of High Power Solid-State Lasers

Lü Kunpeng1,2、*, Liu Zhenyu2, Yang Xue1,2, and Wang Ke1,2
Author Affiliations
  • 1Science and Technology on Solid-State Laser Laboratory, Beijing 100015, China
  • 2The 11th Research Institute of China Electronics Technology Group Corporation, Beijing 100015, China
  • show less
    Figures & Tables(10)
    Schematic of calculation model of two-sided tandem cooling structure. (a) Isometric view; (b) front view
    Structure diagram of Nd∶YAG slab
    Max temperature on middle face versus coolant flow rate
    Max temperature of two cooling surfaces of crystal versus coolant flow rate
    Temperature distributions of representative sections of slab. (a) Middle face of slab; (b) cooling surface near inlet; (c) cooling surface near outlet
    Temperature distribution curves in width direction of strip at different length from bonding line
    Temperature distribution curves in width direction of strip on plane 3 mm away from bonding surface
    Comparison of experimental result and numerical simulation. (a) Infrared thermal image of upper surface of slab; (b) calculated result of temperature distribution of upper surface of slab
    • Table 1. Thermophysical parameters of cooper heat sink and Nd∶YAG slab

      View table

      Table 1. Thermophysical parameters of cooper heat sink and Nd∶YAG slab

      ParameterHeat conductivity λ /(W·m-1·K-1)Specific heat CP /(J·kg-1·K-1)Density ρ /(kg·m-3)
      Cu387.63818978
      Nd∶YAG145904560
    • Table 2. Computation results under different volume flow rates

      View table

      Table 2. Computation results under different volume flow rates

      Volume flowrate Q /(L·min-1)Temperature differencebetween inletand outletΔT /℃Max temperatureon middleface of gainmedium T /℃Max temperatureon surfaceof gain mediumnear inletT1 /℃Max temperatureon surfaceof gain mediumnear outlet T2 /℃Pressure dropΔP /kPa
      515.63108.7854.9361.007.5
      107.73104.0250.7353.7917.2
      155.17102.4949.4151.4928.1
      203.86101.7048.7650.3441.1
      253.09101.2548.4149.6655.5
    Tools

    Get Citation

    Copy Citation Text

    Lü Kunpeng, Liu Zhenyu, Yang Xue, Wang Ke. Numerical Research on Microchannel Cooling Structure of High Power Solid-State Lasers[J]. Chinese Journal of Lasers, 2020, 47(6): 601010

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category: laser devices and laser physics

    Received: Dec. 19, 2019

    Accepted: --

    Published Online: Jun. 3, 2020

    The Author Email: Kunpeng Lü (cetckplv@163.com)

    DOI:10.3788/CJL202047.0601010

    Topics