Infrared and Laser Engineering, Volume. 52, Issue 8, 20230349(2023)

Thermal effect analysis of LD end-pumped Er:Yb:glass/Co:MALO crystal

Jianing Sun1,2, Yulei Wang1,2, Yu Zhang1,2, Yaoyao Qi1,2, Jie Ding1,2, Bingzheng Yan1,2, Zhenxu Bai1,2, and Zhiwei Lv1,2
Author Affiliations
  • 1Center for Advanced Laser Technology, Hebei University of Technology, Tianjin 300401, China
  • 2Hebei Key Laboratory of Advanced Laser Technology and Equipment , Tianjin 300401, China
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    Figures & Tables(21)
    Diagram of experimental structure
    Diagram of crystal modeling
    Temperature distribution of unbonded crystal. (a) Front surface; (b) Section
    Bonded crystal temperature distribution. (a) Front surface; (b) Section
    Temperature distribution. (a) Along the x-axis; (b) Along the z-axis
    Temperature distribution at 976 nm pump wavelength. (a) Front surface; (b) Section
    Temperature distribution at different pump wavelengths. (a) Along x-axis; (b) Along z-axis
    Temperature distribution under different pump power. (a) Along x-axis; (b) Along z-axis
    [in Chinese]
    [in Chinese]
    Temperature distribution under different waist size. (a) Along x-axis; (b) Along z-axis
    Temperature distribution. (a) Front surface; (b) Section
    Thermal stress distribution.(a) Non bonded crystal; (b) Bonded crystal
    Thermal stress distribution at 976 nm pump wavelength
    Thermal stress. (a) Different pump powers; (b) Different waist size
    Thermal stress distribution
    Thermal deformation distribution. (a) Non-bonded crystal; (b) Bonded crystal
    Thermal deformation distribution at 976 nm pump wavelength
    Thermal deformation. (a) Different pump powers; (b) Different waist sizes
    Thermal deformation distribution
    • Table 1. Material parameters

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      Table 1. Material parameters

      ParametersSymbolEr:Yb:glassCo:MALO
      Sizea×b/mm23×33×3
      LengthL/mm 2.51.5
      Thermal conductivityK/W·m−1·K−10.74515
      Thermal expansionαT/K−17.2×10−68.0×10−6
      Temperature coefficient of the refractive index dn/dT/K−1−2.7×10−63.0×10−6
      Densityρ/kg·m−326333500
      Refractive indexn01.531.67
      Poisson's ratioν0.240.24
      Young's modulusE/Pa 70×1092.3×105
      Quantum defectsξ0.3648-
      Absorption coefficient at 940 nm α/cm−14.280.0763
      Absorption coefficient at 975 nm α/cm−119.40.0783
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    Jianing Sun, Yulei Wang, Yu Zhang, Yaoyao Qi, Jie Ding, Bingzheng Yan, Zhenxu Bai, Zhiwei Lv. Thermal effect analysis of LD end-pumped Er:Yb:glass/Co:MALO crystal[J]. Infrared and Laser Engineering, 2023, 52(8): 20230349

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    Paper Information

    Category: Lasers & Laser optics

    Received: Jun. 6, 2023

    Accepted: Jul. 5, 2023

    Published Online: Oct. 19, 2023

    The Author Email:

    DOI:10.3788/IRLA20230349

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