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Proceedings Paper

Scaling laws of optical components during laser induced thermal damage process
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Paper Abstract

In order to study the scaling laws of optical components, we set up a model based on the heat conduction theory and thermodynamic theory. Then the similarity theory was used to the model analyzation. Finally, we demonstrate three conclusions which are related to the practical engineering application. The first one is that thermal damage behaviors of different scale optical components are similar when the linear power density of irradiated laser are the same. In other words, we should use the linear power density to represent the resistance of damage tolerance for optical components The second one is the judgement standard of scram time. We find the scram time of large-aperture system is certain times as much as the scram time of small-aperture system. The third one is about how to design the scaled experiment can we make two different scale laser systems obey the similar thermal damage behaviors. This study is of great help for the damage prevention of the optical components.

Paper Details

Date Published: 29 March 2019
PDF: 6 pages
Proc. SPIE 11046, Fifth International Symposium on Laser Interaction with Matter, 110461F (29 March 2019); doi: 10.1117/12.2524462
Show Author Affiliations
Zhaokai Lou, National Univ. of Defense Technology (China)
State Key Lab. of Pulsed Power Lab Technology (China)
Hunan Provincial Key Lab. of High Energy Laser Technology (China)
Kai Han, National Univ. of Defense Technology (China)
State Key Lab. of Pulsed Power Lab Technology
Hunan Provincial Key Lab. of High Energy Laser Technology (China)
Jian Chen, ZC Optoelectronic Technologies, Ltd. (China)
Hao Liu, National Univ. of Defense Technology (China)
State Key Lab. of Pulsed Power Lab Technology (China)
Hunan Provincial Key Lab. of High Energy Laser Technology (China)
Minsun Chen, National Univ. of Defense Technology (China)
State Key Lab. of Pulsed Power Lab Technology (China)
Hunan Provincial Key Lab. of High Energy Laser Technology (China)
Guomin Zhao, National Univ. of Defense Technology (China)
State Key Lab. of Pulsed Power Lab Technology (China)
Hunan Provincial Key Lab. of High Energy Laser Technology (China)


Published in SPIE Proceedings Vol. 11046:
Fifth International Symposium on Laser Interaction with Matter
YiJun Zhao, Editor(s)

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