| 振幅起伏对自适应光学系统的限制 |
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| 引用本文： | 冯岳忠,龚知本.振幅起伏对自适应光学系统的限制[J].光学学报,1991,11(11):005-1010. |
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| 作者姓名： | 冯岳忠 龚知本 |
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| 作者单位： | 中国科学院安徽光学精密机械研究所，中国科学院安徽光学精密机械研究所，中国科学院安徽光学精密机械研究所 合肥 230031，合肥 230031，合肥 230031 |
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| 摘 要： | 本文讨论了补偿前以及经柔形镜对位相畸变完全校正后的光强分布和斯特列尔比,分析了振幅起伏对自适应光学技术的基本限制。结果表明:振幅起伏的影响最严重时补偿后的中心光强仅为衍射极限的一半,斯特列尔比的极限值在最低时为0.5。
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| 关 键 词： | 自适应光学 振幅 柔形镜 高斯光束 |
| 收稿时间： | 1990/8/14 |
Limitations of amplitude fluctuation on adaptve optics system |
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| FENG YUEZHONG,GONG ZIBEN AND SONG ZHENGFANG.Limitations of amplitude fluctuation on adaptve optics system[J].Acta Optica Sinica,1991,11(11):005-1010. |
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| Authors: | FENG YUEZHONG GONG ZIBEN AND SONG ZHENGFANG |
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| Abstract: | By discussing intensity distribution, and Strehl's ratio before and after perfect phase compensation with a rube-mirror, the limitations of amplitude fluctuation on adaptive optics system are analysed. Although phase distortion can be corrected perfectly, there is a theoretical limit on compensation because the amplitude distortion can not be compensated. A general expression of the limit Strehl's ratio which is variated in whole region of fluctuation is derived. The theories show that the corrected peak intensity is only half of the diffraction intensity when amplitude fluctuation is maximum, the lowest value of the Strehl's ratio limit is 0.5. |
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| Keywords: | amplitude fluctuation adaptive optics rube-mirror |
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