神光II升级系统中束匀滑对三倍频的影响分析

CORC > 上海光学精密机械研究所 > 中国科学院上海光学精密机械研究所 > 高功率激光物理国家实验室

	神光II升级系统中束匀滑对三倍频的影响分析
	季来林 ; 刘崇 ; 朱宝强 ; 邬融 ; 周申蕾 ; 林尊琪
刊名	光学学报
	2013
卷号	33 期号:12 页码:1219002
其他题名	Analysis of Influence of Beam Smoothing on Third Harmonic Generation in SGII Upgrade
通讯作者	季来林, 中国科学院上海光学精密机械研究所, 上海 201800, 中国. ; 刘崇, 中国科学院上海光学精密机械研究所, 上海 201800, 中国. ; 朱宝强, 中国科学院上海光学精密机械研究所, 上海 201800, 中国. ; 邬融, 中国科学院上海光学精密机械研究所, 上海 201800, 中国. ; 周申蕾, 中国科学院上海光学精密机械研究所, 上海 201800, 中国. ; 林尊琪, 中国科学院上海光学精密机械研究所, 上海 201800, 中国.
中文摘要	基于非线性耦合波方程分析了神光II升级系统中束匀滑技术对三次谐波转换过程的影响。模拟结果显示:400 mum焦斑所采用的连续相位板将引起1.4%左右的效率下降,近场对比度增加量约为0.02,均在可接受范围内;但当焦斑达到800 mum时将会引起6%左右的效率下降,并导致近场对比度增加近0.05,无法兼容目前系统设计,必须进一步优化连续相位板设计方案;而谱色散匀滑技术引入光谱展宽达到60 GHz时将引起5%左右的效率下降,且会引发明显的时间纹波扰动;但是谱色散匀滑引入的空间角谱扫描并不会明显影响谐波转换效率,因此在高通量运行时,需要适当减小调制带宽以提高谐波转换效率和系统的稳定性。
英文摘要	The influence of beam smoothing on third harmonic generation (THG) in SGII upgrade is analyzed with the nonlinear coupled wave equation. Simulation results show that the continuous phase plate (CPP) designed for 400 mum focus spot causes the conversion efficiency decreasing by 1.4% or so, and the contrast of near field increasing by 0.02 or so in theory, which is within the acceptable tolerance. While the focus spot reaches 800 mum, the conversion efficiency decreases by about 6% and the contrast increases by 0.05 or so, which is out of the acceptable tolerance, and the scheme of the CPP should be improved. The 60 GHz bandwidth of smoothing by spectral dispersion (SSD) causes the conversion efficiency decreasing by about 5%, with obvious temporal intensity modulation, but influence of the divergence caused by SSD is very small. To maintain the stability of the THG, the bandwidth should be reduced reasonably at high fluence operation.
收录类别	EI
语种	中文
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.siom.ac.cn/handle/181231/14857]
专题	上海光学精密机械研究所_高功率激光物理国家实验室
作者单位	1.Ji Lailin, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China. 2.Liu Chong, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China. 3.Zhu Baoqiang, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China. 4.Wu Rong, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China. 5.Zhou Shenlei, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China. 6.Lin Zunqi, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China.
推荐引用方式 GB/T 7714	季来林,刘崇,朱宝强,等. 神光II升级系统中束匀滑对三倍频的影响分析[J]. 光学学报,2013,33(12):1219002.
APA	季来林,刘崇,朱宝强,邬融,周申蕾,&林尊琪.(2013).神光II升级系统中束匀滑对三倍频的影响分析.光学学报,33(12),1219002.
MLA	季来林,et al."神光II升级系统中束匀滑对三倍频的影响分析".光学学报 33.12(2013):1219002.