Paper
29 March 2019 Analytical solution of steady temperature field distribution in cylindrical medium irradiated by laser
Liang Liu, Shanshan Wang, Hongyan Xu, Zhenjiang Song, Xiujun Huang, Dele Shi
Author Affiliations +
Proceedings Volume 11046, Fifth International Symposium on Laser Interaction with Matter; 110460S (2019) https://doi.org/10.1117/12.2523639
Event: Fifth International Symposium on Laser Interaction with Matter, 2018, Changsha, China
Abstract
Thermal effect severely limits the output power and beam quality in high-power solid-state lasers systems. In solid-state lasers, most optical elements are cylindrical, such as laser medium, mirrors, and so on. Normally, thermal analysis is deduced based on the hypothesis that just one surface is cooled while the others are adiabatic. This paper presents semi-analytical formula of steady-state temperature field distribution, based on the hypothesis that both side surface and one end surface are cooled with different coefficients of heat transfer. Simulation results with Ansys confirmed the correctness of the above formula. The results are helpful to the study of thermal effect in disc laser, rod laser and reflective mirrors in high-power laser system.
© (2019) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Liang Liu, Shanshan Wang, Hongyan Xu, Zhenjiang Song, Xiujun Huang, and Dele Shi "Analytical solution of steady temperature field distribution in cylindrical medium irradiated by laser", Proc. SPIE 11046, Fifth International Symposium on Laser Interaction with Matter, 110460S (29 March 2019); https://doi.org/10.1117/12.2523639
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KEYWORDS
Thermal effects

Solid state lasers

Rod lasers

High power lasers

Thermal modeling

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