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16 November 2018 Damage performance and developments of final optics system for UV nanosecond high power laser systems
Mingying Sun, Zhaoyang Jiao, Yajing Guo, Chong Liu, Rong Wu, Lei Ren, Ping Shao, Jianqiang Zhu, Zunqi Lin
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Proceedings Volume 10805, Laser-Induced Damage in Optical Materials 2018: 50th Anniversary Conference; 108051H (2018) https://doi.org/10.1117/12.2500358
Event: SPIE Laser Damage, 2018, Boulder, Colorado, United States
Abstract
UV laser damage is still the key issue of high power nanosecond laser systems. The operation performance of the final optics in SGII-UP facility is first reviewed. Based on a high power laser prototype, laser-induced damage of large aperture final optics at 351nm was experimentally studied, including damage initiation, growth and morphologies. The near filed of 351nm laser beam was precisely measured with a high resolution by using the precision diagnostics system (PDS) to study the effects of laser modulation and propagation on laser damage. The damage behaviors were comprehensively analyzed and the main contributors to laser damage were discussed. The development perspective of final optics system for high power laser system is briefly introduced.
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Mingying Sun, Zhaoyang Jiao, Yajing Guo, Chong Liu, Rong Wu, Lei Ren, Ping Shao, Jianqiang Zhu, and Zunqi Lin "Damage performance and developments of final optics system for UV nanosecond high power laser systems", Proc. SPIE 10805, Laser-Induced Damage in Optical Materials 2018: 50th Anniversary Conference, 108051H (16 November 2018); https://doi.org/10.1117/12.2500358
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KEYWORDS
High power lasers
Near field
Laser induced damage
Coating
Laser energy
Sol-gels
Ultraviolet radiation
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