| 聚焦高斯光束在湍流大气中的远场传输及相位补偿效果 |
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| 引用本文： | 贺元兴,姜文汉,李新阳.聚焦高斯光束在湍流大气中的远场传输及相位补偿效果[J].中国激光,2011(3). |
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| 作者姓名： | 贺元兴 姜文汉 李新阳 |
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| 作者单位： | 中国科学院光电技术研究所;中国科学院自适应光学重点实验室;国防科学技术大学光电科学与工程学院; |
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| 摘 要： | 从广义惠更斯-菲涅耳原理出发,将残留相位结构函数方法引入到计算部分相位补偿光束通过湍流大气的传播问题中,计算圆孔截断聚焦高斯光束通过不同强度湍流大气的传播后,传输系统的调制传递函数以及远场光强的分布,采用接收面峰值斯特雷尔比作为衡量相位补偿效果的指标,考察前若干低阶泽尼克像差校正对远场光斑质量的改善效果,并与相应文献的计算结果进行了比较,发现新方法得出的计算曲线与该文献的曲线基本吻合,而且新方法在计算复杂性方面优于该文献的方法。对计算结果进行了分析讨论。
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| 关 键 词： | 大气光学 自适应相位补偿 斯特雷尔比 湍流大气 |
Far-Field Propagation of Focused Gaussian Beam through Atmospheric Turbulence and Effects of Adaptive Phase Compensation |
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| He Yuanxing, Jiang Wenhan, Li Xinyang.Far-Field Propagation of Focused Gaussian Beam through Atmospheric Turbulence and Effects of Adaptive Phase Compensation[J].Chinese Journal of Lasers,2011(3). |
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| Authors: | He Yuanxing Jiang Wenhan Li Xinyang |
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| Affiliation: | He Yuanxing1,2,3 Jiang Wenhan1,2 Li Xinyang1,2 1Institute of Optics and Electronics,Chinese Academy of Sciences,Chengdu,Sichuan 610209,China2The Key Laboratory on Adaptive Optics,China3College of Optoelectronic Science and Engineering,National University of Defense Technology,Changsha,Hunan 410073,China |
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| Abstract: | From the generalized Huygens-Fresnel principle,residual phase structure function method is used to calculate the modulation transfer function and far-field irradiance profile of a focused Gaussian beam blocked by a circular aperture through atmospheric turbulence,the Strehl ratio is a useful measure which is used here to evaluate the effects of several lower-order aberration modes corrections on the spot quality in the received plane,and the results derived here agree well with the results of correlation re... |
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| Keywords: | atmospheric optics adaptive phase compensation Strehl ratio atmospheric turbulence |
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