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XIN Yu, SHI Peng, LI Long, BAI Bing, CHANG Rui. Analysis of thermal effect of LD double side pumped Nd:GGG heat capacity laser crystal[J]. LASER TECHNOLOGY, 2011, 35(6): 787-791. DOI: 10.3969/j.issn.1001-3806.2011.06.018
Citation: XIN Yu, SHI Peng, LI Long, BAI Bing, CHANG Rui. Analysis of thermal effect of LD double side pumped Nd:GGG heat capacity laser crystal[J]. LASER TECHNOLOGY, 2011, 35(6): 787-791. DOI: 10.3969/j.issn.1001-3806.2011.06.018
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Analysis of thermal effect of LD double side pumped Nd:GGG heat capacity laser crystal

  • Department of Physics, Faculty of Science, Xi'an University of Architecture & Technology, Xi'an 710055, China

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  • Received Date: March 20, 2011
  • Revised Date: March 29, 2011
  • Published Date: November 24, 2011
    Graphical Abstract
    • Abstract
  • Based on the anisotropy semianalytical thermal analysis, the temperature field and thermal distortion of rectangle Nd:GGG crystal in a double side dislocation pumping laser was investigated. A maximum temperature rise of 309.73℃ happened on the front pumping face and the Gaussian radius w became 9.00mm with two 300W laser diode arrays side-pumping Nd:GGG laser crystal. After analyzing the working characteristics of the laser crystal, a thermal model that matches actual situation of the laser crystal was established, and the analytical expressions of the temperature field and thermal distortion field of the rectangle Nd:GGG laser crystal were obtained. With double side dislocation pumping the rectangle Nd:GGG crystal for 10s, there happened maximum thermal distortion of 28.97m and a maximum optical path difference of 13.02m. After stopping pumping for 200s, the maximum temperature rise dropped to 1.01%. These results provide theoretical basis for the optimized design of LD double side pumped heat capacity lasers.
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    • References (10)
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