| 双变形镜自适应光学全场补偿模拟 |
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| 引用本文： | 李有宽,陈栋泉,杜祥琬.双变形镜自适应光学全场补偿模拟[J].强激光与粒子束,2000,12(6):665-669. |
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| 作者姓名： | 李有宽 陈栋泉 杜祥琬 |
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| 作者单位： | 1. 北京应用物理与计算数学研究所，北京8009信箱 100088；2. 中科院安徽光学精密机械研究所，合肥 230031 |
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| 基金项目： | 国家 8 63激光技术领域资助课题 !(863 -4 10 -1-3 ) |
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| 摘 要： | 在双变形镜自适应光学系统中 ,实现全场补偿的关键步骤之一是使得变形镜 2上主激光的振幅分布具有信标光振幅分布。根据 Y-G波场恢复理论 ,编制了波前恢复程序 ,研究了实现振幅和相位校正湍流问题。研究表明 ,相对于纯相位补偿 ,全场补偿使得 Strehl比提高了 1 .2 7～ 2 .50倍。在变形镜 1和变形镜 2之间的距离为 1 0 m时 ,也使得 Strehl比提高 1 .1 3～ 1 .50倍。
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| 关 键 词： | 自适应光学 双变形镜 波场恢复 激光传输 湍流 全场补偿 振幅补偿 相位补偿 adaptive optics two deformable mirror wavefront retrieval laser propagation turbulence |
| 收稿时间： | 1900-01-01; |
Simulation of Full Field Correction with Two-Deformable-Mirror Adaptive Optics |
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| LI You-kuan,CHEN Dong-quan,DU Xiang-wan.Simulation of Full Field Correction with Two-Deformable-Mirror Adaptive Optics[J].High Power Laser and Particle Beams,2000,12(6):665-669. |
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| Authors: | LI You-kuan CHEN Dong-quan DU Xiang-wan |
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| Abstract: | One key step for full field correction is to match the main laser amplitude distribution with beacon amplitude distribution on deformable mirror 2 in two-deformable-mirror adaptive optics. Amplitude and phase corrections for turbulence are studied based on Y-G wavefront retrieval algorithms. The results show that full field corrections can improve Strehl ratio by a factor of 1.27 to 2.50 compared with phase-only correction. For a distance of 10m between deformable mirror1 and deformable mirror 2, the factor is from 1.13 to 1.50. |
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| Keywords: | adaptive optics two deformable mirror wavefront retrieval laser propagation turbulence |
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