Analysis of hot images in final optics assembly

Zhaoyang Jiao; Yanli Zhang; Mingying Sun; Jianqiang Zhu

doi:10.1117/12.2272772

1 August 2017 Analysis of hot images in final optics assembly

Zhaoyang Jiao, Yanli Zhang, Mingying Sun, Jianqiang Zhu

Proceedings Volume 10339, Pacific Rim Laser Damage 2017: Optical Materials for High-Power Lasers; 103392G (2017) https://doi.org/10.1117/12.2272772
Event: Pacific Rim Laser Damage 2017: Optical Materials for High Power Lasers, 2017, Shanghai, China

Abstract

Optical components are often damaged by hot images in high power laser system, especially for the final optics assembly. There are several nonlinear optical elements and a focusing lens. So both the hot images in free space propagation and in the focusing system are theoretically and numerically studied. We find that the focusing lens moves the hot images towards the lens. Through Fresnel number, the connection of hot image position in free space propagation and in the focusing system is discussed. What’s more, the nonlinear effect of the focusing lens is also considered for the hot images formation because the lens is sometimes very thick. At last, the influence of the size and modulation depth of scatter on the hot images position and intensity are also given. The hot images analysis is essential for the final optics assembly design, which can shed some light on avoiding the optical damage.

Citation Download Citation

Zhaoyang Jiao, Yanli Zhang, Mingying Sun, and Jianqiang Zhu "Analysis of hot images in final optics assembly", Proc. SPIE 10339, Pacific Rim Laser Damage 2017: Optical Materials for High-Power Lasers, 103392G (1 August 2017); https://doi.org/10.1117/12.2272772

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