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Designing of converging stray light focal spot absorber in high power laser system
Author(s): Tian-ran Zheng; Fang Wang; De-en Wang; Xi-bo Sun; Hong-jie Liu; Liang-ming Chen; Dong-xia Hu
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Paper Abstract

In high power solid-state laser facilities, stray lights may do great damage to optical glass and metal structure and affect the transmission of the main laser and the environment cleanliness inside the facility. On the other hand, the stray may also form noise signal of the main laser pulse and affect the output quality. There are mature solutions for the controlling and absorption of parallel and divergent stray light[2]. However there are no reliable solution for the absorption of the converging stray light near its focal spot. An absorber design are proposed using multiple materials and small angle light cone. And this design can realize effective absorption of the stray light focal spot with the peak fluence up to 40J/cm2.

Paper Details

Date Published: 8 July 2019
PDF: 5 pages
Proc. SPIE 11063, Pacific Rim Laser Damage 2019: Optical Materials for High-Power Lasers, 1106317 (8 July 2019); doi: 10.1117/12.2539705
Show Author Affiliations
Tian-ran Zheng, China Academy of Engineering Physics (China)
Fang Wang, China Academy of Engineering Physics (China)
De-en Wang, China Academy of Engineering Physics (China)
Xi-bo Sun, China Academy of Engineering Physics (China)
Hong-jie Liu, China Academy of Engineering Physics (China)
Liang-ming Chen, China Academy of Engineering Physics (China)
Dong-xia Hu, China Academy of Engineering Physics (China)


Published in SPIE Proceedings Vol. 11063:
Pacific Rim Laser Damage 2019: Optical Materials for High-Power Lasers
Jianda Shao; Takahisa Jitsuno; Wolfgang Rudolph, Editor(s)

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