| 利用剪切干涉仪测量激光大气传输相位畸变 |
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| 引用本文： | 何丽萍,王英俭,范承玉.利用剪切干涉仪测量激光大气传输相位畸变[J].量子电子学报,2001,18(Z1):92-96. |
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| 作者姓名： | 何丽萍 王英俭 范承玉 |
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| 作者单位： | 何丽萍（中国科学院安徽光学精密机械研究所国家863计划大气光学重点实验室,合肥,230031）
王英俭（中国科学院安徽光学精密机械研究所国家863计划大气光学重点实验室,合肥,230031）
范承玉（中国科学院安徽光学精密机械研究所国家863计划大气光学重点实验室,合肥,230031） |
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| 摘 要： | 文中就利用剪切干涉仪测量激光大气传输相位畸变的问题进行了探讨.对横向剪切干涉仪(LSI)及Hartmann波前传感器的波前探测和复原进行了类比仿真分析,结果表明在同等条件下,前者的波前复原能力优于后者.利用我们研制的二维剪切干涉仪,对激光大气传输湍流效应引起的波前畸变进行了测量,对实验结果进行了初步的研究分析,并首次得到了激光大气传输相位不连续性的直接测量结果,验证了LSI应用于测量激光大气传输相位畸变的可行性和优越性.
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| 关 键 词： | 横向剪切干涉仪 Hartmann波前传感器 相位畸变 波前复原 |
| 文章编号： | 1007-5461(2001)增刊-0092-05 |
Measurement of the Phase Distortion for a Laser Beam Propagating Through the Atmosphere by a Lateral Shear Interferometer |
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| He Liping,Wang Yingjian,Fan Chengyu.Measurement of the Phase Distortion for a Laser Beam Propagating Through the Atmosphere by a Lateral Shear Interferometer[J].Chinese Journal of Quantum Electronics,2001,18(Z1):92-96. |
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| Authors: | He Liping Wang Yingjian Fan Chengyu |
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| Abstract: | A Lateral Shear Interferometer (LSI) is used for the measurement of the phase distortion of a laser beam propagating through the atmosphere, and for the detection of branch points. Comparisons have been made between the detection and reconstruction of wavefront by a LSI and a Hartmann Wavefront Sensor (HWS) through numerical simulation. Dynamic wavefront aberrations caused by turbulence for a laser beam propagating through the atmosphere are measured synchronologically from lateral shear interferograms sheared in two orthogonal directions with a LSI. At last, We gave out some elementary analytic results, and for the first time, we carried out direct measurement of the phase discontinuity for a laser beam propagating through the atmosphere. |
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| Keywords: | Lateral Shear Interferometer Hartmann Wavefront Sensor phase distortion reconstruction of wavefront |
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