聚焦光束热晕效应相位补偿定标规律研究  

Analysis of Scaling Laws for Phase Compensation of Focused Beam under Thermal Blooming Conditions

作　　者：张鹏飞[1] 范承玉[1] 乔春红[1] 马慧敏[1] 张京会[1] 王海涛[1] 王英俭[1] 

机构地区：[1]中国科学院安徽光学精密机械研究所大气成分与光学重点实验室,安徽合肥230031

出　　处：《中国激光》2012年第2期206-209,共4页Chinese Journal of Lasers

基　　金：中国科学院合肥物质科学研究院知识创新工程青年人才基金(Y03Rc21121)资助课题

摘　　要：非线性热晕效应对高能激光大气传输有重要的影响,一个可以用来预测和评价高能激光在不同传输条件下自适应光学系统补偿效果的定标规律对实际的工程应用有重要的意义。利用激光大气传输四维仿真程序,通过仿真不同空间带宽的自适应光学系统,在均匀路径下,对不同发射口径、不同传输距离聚焦光束稳态热晕的相位补偿进行了数值计算。结果表明,自适应光学系统空间带宽对聚焦光束热晕效应的相位补偿影响差别不大,使用广义畸变参数N可以较好地定标其相位补偿效果。Thermal blooming has great influence on high power laser propagation in the atmosphere.It is very important to find a sacling law to evaluate the performance of adaptive optics compensation for the high power laser propagation in the atmosphere.Adaptive optics system with different spatial bandwidths has been simulated and phase compensation for focused beam under thermal blooming with different transmitter apertures and propagation lengths has been numerically calculated by four-dimensional propagation codes.The results show that the spatial resolution of adaptive optics system has little influence on the target beam quality.The target beam quality can be scaled by the thermal distortion parameter N.

关 键 词：自适应光学 热晕效应 相位补偿 定标规律 

分 类 号：TN012[电子电信—物理电子学]