Temperature distribution of laser crystal in end-pumped DPSSL

Yibo Zheng; Liping Jia; Lei Zhang; Jihua Wen; Junjian Kang

doi:10.1117/12.837708

25 November 2009 Temperature distribution of laser crystal in end-pumped DPSSL

Yibo Zheng, Liping Jia, Lei Zhang, Jihua Wen, Junjian Kang

Proceedings Volume 7506, 2009 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments; 75061G (2009) https://doi.org/10.1117/12.837708
Event: International Conference on Optical Instrumentation and Technology, 2009, Shanghai, China

Abstract

The temperature distribution in different cooling system was studied. A thermal distribution model of laser crystal was established. Based on the calculation, the temperature distribution and deformation of ND:YVO₄ crystal in different cooling system were obtained. When the pumping power is 2 W and the radius of pumping beams is 320μm, the temperature distribution and end face distortion of the laser crystal are lowest by using side directly hydrocooling method. The study shows that, the side directly hydrocooling method is a more efficient method to control the crystal temperature distribution and reduce the thermal effect.

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Yibo Zheng, Liping Jia, Lei Zhang, Jihua Wen, and Junjian Kang "Temperature distribution of laser crystal in end-pumped DPSSL", Proc. SPIE 7506, 2009 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments, 75061G (25 November 2009); https://doi.org/10.1117/12.837708

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KEYWORDS

Laser crystals

Crystals

Neodymium lasers

Cooling systems

Copper

Thermal effects

Thermal modeling

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