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Proceedings Paper

Multi-annular channel liquid cooled Nd:YAG thin disk laser medium
Author(s): Jian Mu; Guoying Feng; Huomu Yang; Hong Zhang; Shouhuan Zhou
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Paper Abstract

For the non-uniform distribution of pump and temperature in the large aperture, high-power thin disk laser medium, a novel cooling method of multi-annular channel liquid cooling is proposed and examined both experimentally and theoretically. The temperature distribution in the gain medium is getting into uniform utilizing the method of multi-annular channel liquid cooling, which is proved by a numerical model using ANSYS software. In the modeling, the distribution of temperature in the medium varies with the changes of the flow rate and temperature of the coolant in each annular channel. A wonderful uniform temperature distribution could be obtained in the gain medium with arbitrary power and profile of pump light by setting a tailored parameter of the coolant in each annular channel. The highest temperature difference in the gain medium with multi-annular channel liquid cooling reduces about 88% compared with an evenly cooling. And the thermal effect has been suppressed, the experimental result is consistent well with numerical modeling. This method could be a new idea for designing the thin disk laser’s cooling system.

Paper Details

Date Published: 28 February 2014
PDF: 8 pages
Proc. SPIE 8959, Solid State Lasers XXIII: Technology and Devices, 895928 (28 February 2014); doi: 10.1117/12.2048241
Show Author Affiliations
Jian Mu, Sichuan Univ. (China)
Guoying Feng, Sichuan Univ. (China)
Huomu Yang, Sichuan Univ. (China)
Hong Zhang, Sichuan Univ. (China)
Shouhuan Zhou, Sichuan Univ. (China)
North China Research Institute of Electro-Optics (China)

Published in SPIE Proceedings Vol. 8959:
Solid State Lasers XXIII: Technology and Devices
W. Andrew Clarkson; Ramesh K. Shori, Editor(s)

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