Simulation experiment of high energy laser propagation in the atmosphere

qiao chun-hong; fan cheng-yu; wang ying-jian; feng xiao-xing; cheng dong-jie

Volume 20 Issue 11

Nov. 2008

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Article Navigation > High Power Laser and Particle Beams > 2008 > 20(11): 0-

ning cheng, yang zhen hua, ding ning. Process of radiation magnetohydrodynamics in Al wirearray Zpinch[J]. High Power Laser and Particle Beams, 2002, 14.

Citation:

qiao chun-hong, fan cheng-yu, wang ying-jian, et al. Simulation experiment of high energy laser propagation in the atmosphere[J]. High Power Laser and Particle Beams, 2008, 20.

ning cheng, yang zhen hua, ding ning. Process of radiation magnetohydrodynamics in Al wirearray Zpinch[J]. High Power Laser and Particle Beams, 2002, 14.

Citation:

qiao chun-hong, fan cheng-yu, wang ying-jian, et al. Simulation experiment of high energy laser propagation in the atmosphere[J]. High Power Laser and Particle Beams, 2008, 20.

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Simulation experiment of high energy laser propagation in the atmosphere

1.
Center for Atmospheric Optics,Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,P.O.Box 1125,Hefei 230031,China

Publish Date: 2008-11-15

Abstract

Abstract

Simulation experiments of adaptive optics compensation to thermal blooming phase distortion induced by high energy laser propagation in the atmosphere were carried out. The results of spot pattern, centroid excursion, second moment radius and the Strehl ratio in the focal plane were obtained when the adaptive optics system was in the open or closed loop shape. The effect of adaptive optics compensation was prominent when the Bradley-Hermann distortion number was less than 300, and the Strehl ratio was more than 0.4 on the whole. Phase compensation instability appeared when the distortion number ND became greater than 300, in this case, the compensated beam Strehl ratio went down rapidly. The experimental Strehl ratio without adaptive optics compensation agreeed well with that of the thin l
- atmosphere optics,
- high energy laser,
- thermal blooming effects,
- adaptive optics,
- phase compensation,
- laser propagation

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