Modeling for the thermal stress damage of the optical elements induced by high energy laser

Zhaokai Lou; Kai Han; Minsun Chen; Baozhu Yan; Yi Yang; Hao Liu; Jian Chen; Xiao Li

doi:10.1117/12.2505380

12 December 2018 Modeling for the thermal stress damage of the optical elements induced by high energy laser

Zhaokai Lou, Kai Han, Minsun Chen, Baozhu Yan, Yi Yang, Hao Liu, Jian Chen, Xiao Li

Proceedings Volume 10847, Optical Precision Manufacturing, Testing, and Applications; 108470M (2018) https://doi.org/10.1117/12.2505380
Event: International Symposium on Optoelectronic Technology and Application 2018, 2018, Beijing, China

Abstract

The thermal stress damage of optical elements always restrict the development of high power laser system. We studied the thermal damage mechanism of the optical elements with contaminants induced by high power continuous wave (CW) lasers. An experiment was carried out by a self-build optical element testing platform and a model based on the temperature field theory and thermodynamic theory was set up. We recorded the thermal stress damage process based on a 10 kW/cm² level mid-infrared continuous wave laser. Then we calculated the thermal damage process of optical elements. The calculated results are in agreement with our experimental record. The results showed the success of modeling calculation in the thermal damage mechanism caused by contaminants.

Citation Download Citation

Zhaokai Lou, Kai Han, Minsun Chen, Baozhu Yan, Yi Yang, Hao Liu, Jian Chen, and Xiao Li "Modeling for the thermal stress damage of the optical elements induced by high energy laser", Proc. SPIE 10847, Optical Precision Manufacturing, Testing, and Applications, 108470M (12 December 2018); https://doi.org/10.1117/12.2505380

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