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Proceedings Paper

Laser damage performance of large-aperture fused silica optical components at 351 nm
Author(s): Wanqing Huang; Wei Han; Fang Wang; Yong Xiang; Fuquan Li; Bin Feng; Feng Jing; Xiaofeng Wei; Wanguo Zheng; Xiaomin Zhang
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Paper Abstract

High power laser facility for ICF will routinely operate at high fluence level. The damage on the large-area FOA optics is a key lifetime limiter. The optics should be checked after each laser shot for damage initiation and growth. On-line monitoring equipments are installed for this purpose. Damage pictures of a fused silica component are successfully taken and the luminance of the pictures could reflect the deterioration of the operational environment. Damage initiation and growth behaviors at 351nm high-fluence laser were observed. Damage density and damage growth are exponential with the shot number and some conclusions could be drawn. These results bring forward demands for future monitoring equipments and more experiments to establish a lifetime model.

Paper Details

Date Published: 18 February 2009
PDF: 6 pages
Proc. SPIE 7276, Photonics and Optoelectronics Meetings (POEM) 2008: Laser Technology and Applications, 72760A (18 February 2009); doi: 10.1117/12.821189
Show Author Affiliations
Wanqing Huang, Research Ctr. of Laser Fusion, CAEP (China)
Wei Han, Research Ctr. of Laser Fusion, CAEP (China)
Fang Wang, Research Ctr. of Laser Fusion, CAEP (China)
Yong Xiang, Research Ctr. of Laser Fusion, CAEP (China)
Fuquan Li, Research Ctr. of Laser Fusion, CAEP (China)
Bin Feng, Research Ctr. of Laser Fusion, CAEP (China)
Feng Jing, Research Ctr. of Laser Fusion, CAEP (China)
Xiaofeng Wei, Research Ctr. of Laser Fusion, CAEP (China)
Wanguo Zheng, Research Ctr. of Laser Fusion, CAEP (China)
Xiaomin Zhang, Research Ctr. of Laser Fusion, CAEP (China)


Published in SPIE Proceedings Vol. 7276:
Photonics and Optoelectronics Meetings (POEM) 2008: Laser Technology and Applications
Peixiang Lu; Katsumi Midorikawa; Bernd Wilhelmi, Editor(s)

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