Eliminating the damage of pencil beam by the misaligned optical lens system
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摘要: 分析高功率激光器中笔形光束的成因及其潜在危害的规律,提出一种减少(或消除)空间滤波器中笔形光束的技术措施——倾斜透镜法。用增广矩阵法计算非共轴光路笔形光束会聚点位置并分析其变化。以高功率激光系统的空间滤波器为例,报道追寻失调滤波器中鬼点和消除笔形光束的设计、计算结果。结果表明,采用两透镜非同轴构型,选取适当的滤波器设计参数,并适当倾斜透镜L2,能有效地避免笔形光束对高能激光系统造成的危害。Abstract: The potential damage of optical elements induced by the pencil beam in high power laser system is analyzed based on augmented matrix optics.The numerical results of positioning the ghost points in spatial filter of high power laser system are presented.It is shown that tilting one of lenses in the spatial filter can reduce(or eliminate) the potential damage of pencil beam.The result shows that using the misaligned optical lens system and tilting the lens can avoid the damage caused by pencil beams in high power laser system.
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[1] 冯国英,陈建国,马再如 et al.高功率激光系统中近轴鬼点的寻找[J].光学学报,2003,23(5):632~635. [2] 李良珏,王仕璠,李银柱 et al."神光"装置中空间滤波器的鬼点分析[J].中国激光,2001,28(9):826~828. [3] 李银柱,李良钰,戴亚平 et al.高功率激光装置中的鬼点反射分析[J].中国激光,2001,28(8):677~680. [4] MURRAY J E,Van WANTERGHEM B,SEPALA L et al.Parasiticpencil beam caused by lens reflections in laser complifier chains[J].SPIE,1997,2633:609.
[5] 谭吉春,景峰,朱启华 et al.多通放大器腔内的杂散光[J].强激光与粒子束,2000,12(2):159~163. [6] 卢亚雄,吕百达.矩阵光学[M].大连:大连理工大学出版社,1988.82~95. -
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