Infrared and Laser Engineering, Volume. 46, Issue 3, 321005(2017)
Laser pretreatment parameters optimization of KDP crystal
KDP crystal is the chief choice of frequency multiplier in high power laser system. Laser pretreatment is usually used to improve the damage probability of KDP element, the pretreatment process is more time-consuming, and it is of great significance to the engineering application to improve the pretreatment efficiency. KDP damage performance preconditioned by different laser pretreatment protocols was investigated, every protocol had three key parameters: laser radiation fluence, irradiated laser shots, and energy steps. By analyzing the condition parameters and the resultant damage performance, effect of every parameter on damage performance was discovered, and it is found that the same pretreatment performance can be achieved by using different energy steps, and laser pretreatment protocol was optimized by using variable energy steps instead of fixing one. Experimental results show that the variable energy steps protocol achieves total laser shots savings of 33%. The results would be benefit for KDP elements pretreatment process.(2013A0302016)
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Wang Fengrui, Li Qingzhi, Guo Decheng, Huang Jin, Geng Feng. Laser pretreatment parameters optimization of KDP crystal[J]. Infrared and Laser Engineering, 2017, 46(3): 321005
Category: 先进光学材料
Received: Jul. 8, 2016
Accepted: Aug. 12, 2016
Published Online: Jun. 27, 2017
The Author Email: Fengrui Wang (wangfr2006@163.com)