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Proceedings Paper

Thermal effect of Nd:YVO4 by laser diode end-pumped
Author(s): Yibo Zheng; Lei Zhang; Liping Jia; Junjian Kang
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Paper Abstract

Based on Possion equation, a thermal conduct model of laser crystal was established. The temperature distribution in laser crystal were obtained,and the optics path difference(OPD) induced by end-face distortion and total OPD were caculated. Based on the calculation, the focal length of laser crystal with different pumping powers was obtained. The experimental result agrees with the caculated result very well. When the pumping power is 2 W and the radius of pumping beams is 320μm; the OPD induced by end-face distortion is 36% of the toatal OPD for ND:YVO4 crystal. When the pumping power is 5W, the focal length of crystal is 29.7mm. The study shows that, for the solid-stste laser with high power, the OPD induced by end-face distortion has a large influence on theraml effect of laser crystal. This study provides a theoretical direction for improving the stability of laser and studying the thermal effect of laser crystal.

Paper Details

Date Published: 28 January 2009
PDF: 8 pages
Proc. SPIE 7156, 2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments, 71562F (28 January 2009); doi: 10.1117/12.807052
Show Author Affiliations
Yibo Zheng, Shijiazhuang Univ. of Economics (China)
Lei Zhang, Shijiazhuang Univ. of Economics (China)
Liping Jia, Shijiazhuang Univ. of Economics (China)
Junjian Kang, Shijiazhuang Univ. of Economics (China)


Published in SPIE Proceedings Vol. 7156:
2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments

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