| 光子计数剪切干涉仪波前探测自适应光学系统噪声分析 |
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| 引用本文： | 饶长辉,姜文汉,李明全.光子计数剪切干涉仪波前探测自适应光学系统噪声分析[J].光学学报,1997,17(2):175-180. |
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| 作者姓名： | 饶长辉 姜文汉 李明全 |
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| 作者单位： | 中国科学院光电技术研究所 |
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| 摘 要： | 在自适应光学系统中，波前探测器的噪声是主要误差源。针对我们建立的２．１６ｍ望远镜红外自适应光学系统，从伺服控制系统的角度分析了光子计数噪声及其在系统闭环过程中的传递，从理论上推导了系统的噪声功率谱、伺服传递函数以及开环和闭环噪声公式。另外，还给出了在系统中实测的开环和闭环噪声
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| 关 键 词： | 自适应光学，波前探测，剪切干涉仪，光子计算，散粒噪声 |
| 收稿时间： | 1995/9/7 |
Noise Analysis of an Adaptive Optics System Using Photon Counting Shearing Interferometer as Wavefront Sensor |
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| Rao Changhui,Jiang Wenhan,Li Mingquan.Noise Analysis of an Adaptive Optics System Using Photon Counting Shearing Interferometer as Wavefront Sensor[J].Acta Optica Sinica,1997,17(2):175-180. |
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| Authors: | Rao Changhui Jiang Wenhan Li Mingquan |
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| Abstract: | The noise of wavefront sensor is a major noise source in adaptive optics system. Based on the infrared adaptive optics system at 2.16 m telescope, the photon counting noise of wavefront sensor which is photon counting shearing interferometer, and error propagation in the course of close loop are analysed in terms with servo control system. The noise power spectra, servo transfer function, the open loop and closed loop RMS noise error are deduced theoretically. The experimental results are presented. |
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| Keywords: | adaptive optics wavefront sensor shearing interferometer photon counting shot noise |
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