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Laser & Optoelectronics Progress, Volume. 59, Issue 21, 2114001(2022)

Thermal Effect Analysis of Pulsed LD End-Pumped YAG/Nd∶YAG Composite Crystal

Long Li1,2, Jianhua Yang1、*, Chunling Zhang1,2, Juan Niu1, Biao Xue1, and Yingge Geng1
Author Affiliations
  • 1Faculty of Science, Xi'an University of Architecture & Technology, Xi'an 710055, Shaanxi, China
  • 2Institute for Applied Physics, Xi'an University of Architecture & Technology, Xi'an 710055, Shaanxi, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (8)
    Equations (6)
    References (23)
    Cited By (4)
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    Figures & Tables(8)
    Schematic of LD end-pumped YAG/Nd∶YAG composite crystal

    Fig. 1. Schematic of LD end-pumped YAG/Nd∶YAG composite crystal

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    Temperature distribution of composite crystal in pump surface

    Fig. 2. Temperature distribution of composite crystal in pump surface

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    Relationship between maximum temperature of composite crystal and length of undoped crystal

    Fig. 3. Relationship between maximum temperature of composite crystal and length of undoped crystal

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    Temperature of YAG/Nd∶YAG composite under different pump powers

    Fig. 4. Temperature of YAG/Nd∶YAG composite under different pump powers

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    Temperature of YAG/Nd∶YAG composite crystal crystal under different pulse widths

    Fig. 5. Temperature of YAG/Nd∶YAG composite crystal crystal under different pulse widths

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    Three-dimensional distribution map of thermal deformation of crystal pump surface

    Fig. 6. Three-dimensional distribution map of thermal deformation of crystal pump surface

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    Thermal deformation distribution map on end face center of YAG/Nd∶YAG composite crystal

    Fig. 7. Thermal deformation distribution map on end face center of YAG/Nd∶YAG composite crystal

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    • Table 1. Thermal performance of Nd∶YAG crystal

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      Table 1. Thermal performance of Nd∶YAG crystal

      ParameterValue
      Melting point /℃1970
      Density /（g·cm-3）4.56
      Thermal conductivity /（W·m-1·K-1）10
      Specific heat /（J·g-1·K-1）0.59
      Radius of disk /μm300
      Coefficient of thermal expansion /K-18.2×10-6
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    Long Li, Jianhua Yang, Chunling Zhang, Juan Niu, Biao Xue, Yingge Geng. Thermal Effect Analysis of Pulsed LD End-Pumped YAG/Nd∶YAG Composite Crystal[J]. Laser & Optoelectronics Progress, 2022, 59(21): 2114001

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    Paper Information

    Category: Lasers and Laser Optics

    Received: Sep. 2, 2021

    Accepted: Oct. 27, 2021

    Published Online: Oct. 24, 2022

    The Author Email: Jianhua Yang (3171710196@qq.com)

    DOI:10.3788/LOP202259.2114001

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology