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Semianalytical thermal analysis of rectangle Nd:GGG in heat capacity laser

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Abstract

Based on the theory of anisotropy semianalytical thermal analysis, the temperature field of rectangle Nd:GGG heat capacity laser crystal is investigated. Through an analysis of the working characteristics of the heat capacity laser crystal, a thermal model of heat capacity laser crystal is established. Using a new method for the anisotropic medium heat conduction equation, a temperature field expression of rectangle Nd:GGG heat capacity laser crystal for pumping stage and cooling stage is obtained, respectively. These results show that when using the output power of 300 W LD end-pumped rectangle Nd:GGG crystal for 10 seconds, the maximum temperature rise in the center of the pump face is 180.18°C, and after stopping pumping for 100 seconds, the maximum temperature rise drops to 0.74%. These results from this work provide a theoretical basis for the optimized design of a LD end-pumped heat capacity laser.

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Authors and Affiliations

  1. Department of Physics, School of Science, Xi’an University of Architecture & Technology, 710055, Xi’an, China

    L. L. Zhang, P. Shi & L. Li

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  1. L. L. Zhang
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  2. P. Shi
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  3. L. Li
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Correspondence to L. L. Zhang.

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Zhang, L.L., Shi, P. & Li, L. Semianalytical thermal analysis of rectangle Nd:GGG in heat capacity laser. Appl. Phys. B 101, 137–142 (2010). https://doi.org/10.1007/s00340-010-4016-8

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  • DOI: https://doi.org/10.1007/s00340-010-4016-8

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