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Proceedings Paper

Numerical analysis of thermal effects in semiconductor disk laser with water cooling
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Paper Abstract

This paper has established a thermal model of Vertical-external-cavity surface-emitting semiconductor laser (VECSELs) with water-cooled heatsink, calculated the distribution of temperature field with finite element method, and studied the effects of pumping light, heat transfer coefficient, and heatsink characteristics on the maximum temperature of the quantum well. Calculations show that there is an optimal heat transfer coefficient value interval, thermal conductivity of the VECSELs heatsink will have a significant impact on the maximum temperature of the quantum well, and increasing area of cooler heatsink would help to improve heat dissipation performance. It also shows that the maximum temperature of the quantum well has a linear relationship with pump power, and a nearly inverse relationship with the spot size. Due to thermal diffusion of water-cooled heatsink for VECSELs point heat source, the maximum temperature of quantum well is not sensitive to thickness and area of the heatsink, heat dissipation performance which uses a diamond heatsink is about 1.7 times the oxygen-free copper heatsink.

Paper Details

Date Published: 18 November 2014
PDF: 6 pages
Proc. SPIE 9267, Semiconductor Lasers and Applications VI, 92670X (18 November 2014); doi: 10.1117/12.2071223
Show Author Affiliations
Renjiang Zhu, Chongqing Univ. and Chongqing Normal Univ. (China)
Chongqing Municipal Key Lab. of Optoelectronic Material and Engineering (China)
Yingjun Pan, Chongqing Univ. (China)
Maohua Jiang, Chongqing Normal Univ. (China)
Chongqing Municipal Key Lab. of Optoelectronic Material and Engineering (China)
Peng Zhang, Chongqing Normal Univ. (China)
Chongqing Municipal Key Lab. of Optoelectronic Material and Engineering (China)


Published in SPIE Proceedings Vol. 9267:
Semiconductor Lasers and Applications VI
Ninghua Zhu; Werner H. Hofmann, Editor(s)

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