外文题目: Analysis of hot images in final optics assembly
作者: Jiao, Zhaoyang; Zhang, Yanli; Sun, Mingying; Zhu, Jianqiang
刊名: Proc.SPIE
来源图书: PACIFIC RIM LASER DAMAGE 2017-OPTICAL MATERIALS FOR HIGH-POWER LASERS
年: 2017 卷: 10339
会议名称: Pacific Rim Laser Damage Symposium on Optical Materials for High Power Lasers (PLD)
英文关键词:
hot images; final optics assembly; optical damage
FRESNEL DIFFRACTION; LASER; OBSCURATIONS; GAIN
英文摘要:
Optical components are often damaged by hot images in high power laser system, especially for the final optics assembly. There are several nonlinear optical elements and a focusing lens. So both the hot images in free space propagation and in the focusing system are theoretically and numerically studied. We find that the focusing lens moves the hot images towards the lens. Through Fresnel number, the connection of hot image position in free space propagation and in the focusing system is discussed. What's more, the nonlinear effect of the focusing lens is also considered for the hot images formation because the lens is sometimes very thick. At last, the influence of the size and modulation depth of scatter on the hot images position and intensity are also given. The hot images analysis is essential for the final optics assembly design, which can shed some light on avoiding the optical damage.


文献类型: 会议论文
正文语种: English
收录类别: ISTP
DOI: 10.1117/12.2272772


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