Interferometric adaptive optics for high-power laser beam correction in fast ignition experiments

被引：5
|
作者：
Homoelle, D. [1 ]
Baker, K. L. [1 ]
Patel, P. K. [1 ]
Utterback, E. [1 ]
Rushford, M. C. [1 ]
Siders, C. W. [1 ]
Barty, C. P. J. [1 ]
机构：
[1] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA
来源：
SIXTH INTERNATIONAL CONFERENCE ON INERTIAL FUSION SCIENCES AND APPLICATIONS, PARTS 1-4 | 2010年 / 244卷
关键词：
SYSTEMS;
D O I：
10.1088/1742-6596/244/3/032007
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
We present the design for a high-speed adaptive optics system that will be used to achieve the necessary laser pointing and beam-quality performance for initial fast-ignition coupling experiments. This design makes use of a 32x32 pixellated MEMS device as the adaptive optic and a two-channel interferometer as the wave-front sensor. We present results from a system testbed that demonstrates improvement of the Strehl ratio from 0.09 to 0.61 and stabilization of beam pointing from similar to 75 mu rad to <2 mu rad.
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页数：4
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