多程放大器输出焦斑相对于靶的漂移  

MISALIGNMENT OF FOCAL SPOT ON TARGET IN MULTI-PASS AMPLIFIER

作　　者：谭吉春[1] 张小民[2] 陈哲[1] 景峰[2] 朱启华 阎述卓 刘勇[1] 

机构地区：[1]国防科技大学应用物理系光电技术室,长沙410073 [2]中国工程物理研究院核物理与化学研究所激光工程部,绵阳919219信箱621900

出　　处：《强激光与粒子束》2000年第3期261-264,共4页High Power Laser and Particle Beams

基　　金：中国工程物理研究院科学基金资助课题!( 990 2 2 1-2 )

摘　　要：对激光光路中光学元件矩阵分别施加“随机微扰”,用光线追踪程序计算光学元件几何参数失调对放大器输出焦斑漂移的影响。并给出漂移量的统计计算结果。In this paper the drift of beam position on target,together with its error distribution, duo to motion of an optical component caused by structural excitations or thermal excitations in laser bay are reported. The contribution to the change of the beam position on target for each optical component (or parameters of laser system) were analyzed with a ray-trace software, in which the drift of focal spot position about target were computed by adding random perturbation to parameters of optical component (by augmenting a perturbation to the matrix elements of corresponding optical component).

关 键 词：多通放大器 激光焦斑 焦斑相 靶 散布 

分 类 号：TN722[电子电信—电路与系统] TN248.1