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Proceedings Paper

Effect of ion beam figuring on laser damage properties of KDP crystal
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Paper Abstract

Potassium dihydrogen phosphate (KDP) crystals are essential components used in the high power laser applications. Its properties will affect the output power and quality of laser beam directly. To improve the laser-induced damage threshold (LIDT) of KDP crystal, this paper investigated the influence of ion beam figuring(IBF) technology on the laser damage properties of KDP crystal machined by single point diamond turning(SPDT). Firstly, the surface quality and photo-thermal absorption performance of samples were measured after turning and ion beam figuring. Then, the LIDT of crystal of different processing conditions were measured by R-on-1 test method. Finally, the mechanisms that ion beam figuring could improve the LIDT were analyzed and discussed.The experiment results show that ion beam figuring can reduce surface roughness,improve the surface quality as well as lower the absorption of KDP crystal elements, which contribute to increase the laser damage resistance of KDP crystals obviously.

Paper Details

Date Published: 1 August 2017
PDF: 7 pages
Proc. SPIE 10339, Pacific Rim Laser Damage 2017: Optical Materials for High-Power Lasers, 103391Y (1 August 2017); doi: 10.1117/12.2271510
Show Author Affiliations
Qi Xiao, National Univ. of Defense Technology (China)
Feng Shi, National Univ. of Defense Technology (China)
Jiangliang Song, National Univ. of Defense Technology (China)
Furen Li, National Univ. of Defense Technology (China)


Published in SPIE Proceedings Vol. 10339:
Pacific Rim Laser Damage 2017: Optical Materials for High-Power Lasers
Jianda Shao; Takahisa Jitsuno; Wolfgang Rudolph, Editor(s)

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