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Volume 29 Issue 5
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Eliminating the damage of pencil beam by the misaligned optical lens system

  • 1.

    College of Photoelectric Science Engineering, National University of Defense Technology, Changsha 410073, China

  • Received Date: 2004-06-08
    Accepted Date: 2004-07-13
  • 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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  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

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Eliminating the damage of pencil beam by the misaligned optical lens system

  • 1. College of Photoelectric Science Engineering, National University of Defense Technology, Changsha 410073, China
  • Received Date: 2004-06-08
  • Accepted Date: 2004-07-13
  • Available Online: 2005-09-25

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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