激光驱动器波前补偿系统的方案设计

代万俊; 胡东霞; 周维; 赵军普; 张崑; 蒋学军; 景峰

中国激光, 2009, 36 (s1): 225, 网络出版: 2009-06-18

激光驱动器波前补偿系统的方案设计

Reasearch of Wavefront Correction System in Laser Driver

论文大纲

代万俊 ^*胡东霞周维赵军普张崑蒋学军景峰

作者单位

中国工程物理研究院激光聚变中心, 四川绵阳 621900

高功率固体激光装置波前补偿自适应光学焦斑 high power solid-state laser facility wavefront correction adaptive optics focal spot

摘要

基于神光-Ⅲ原型装置上自适应光学系统应用获得的理论和实验结果, 研究了其中的主要科学技术问题, 提出了相应的解决方法, 通过实验验证了其有效性。为满足未来大型高功率固体激光驱动器的波前补偿要求, 理论上研究了自适应光学系统与连续相位板(PP)相结合的补偿方案。采用数值模拟的方法研究了“大口径变形镜(DM)＋1块连续相位板”和“小口径变形镜+2块连续相位板”两种方案的波前补偿能力。模拟结果表明, 采用“小口径变形镜+2块连续相位板”的方案能有效地实现全光路系统波前畸变控制, 同时还可以兼顾物理实验对焦斑尺寸和均匀性的要求, 为未来高功率固体激光驱动器波前补偿方案设计提供理论依据。

Abstract

Based on the theoretical and experimental results of adaptive optics system application in SG-Ⅲ prototype facility, the main scientific and technical problems were researched and solved, the efficiency was verified by experiment. In order to fulfill need of future high power solid-state laser driver wavefront correction, the scheme of combined adaptive optics system with continuous phase plate (CPP) was researched in theory. “One big deformable mirror (DM) with one CPP ”and “One small DM with two CPPs” schemes were analyzed by numerical modeling. The result showed that the latter scheme can achieve the goal of controlling the entire beam wavefront, and fulfill the need of focal spot size and uniformity for physics experiment. The results can also provide theoretical reference to design wavefront correction system in high power solid-state laser facility.

参考文献

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代万俊, 胡东霞, 周维, 赵军普, 张崑, 蒋学军, 景峰. 激光驱动器波前补偿系统的方案设计[J]. 中国激光, 2009, 36(s1): 225. Dai Wanjun, Hu Dongxia, Zhou Wei, Zhao Junpu, Zhang Kun, Jiang Xuejun, Jing Feng. Reasearch of Wavefront Correction System in Laser Driver[J]. Chinese Journal of Lasers, 2009, 36(s1): 225.

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