Precise calibration of pupil images in pyramid wavefront sensor

	Precise calibration of pupil images in pyramid wavefront sensor
	Liu, Y.; Q. Q. Mu; Z. L. Cao; L. F. Hu; C. L. Yang and L. Xuan
	2017
发表期刊	Applied Optics
卷号	56 期号:12
摘要	The pyramid wavefront sensor (PWFS) is a novel wavefront sensor with several inspiring advantages compared with Shack-Hartmann wavefront sensors. The PWFS uses four pupil images to calculate the local tilt of the incoming wavefront. Pupil images are conjugated with a telescope pupil so that each pixel in the pupil image is diffraction-limited by the telescope pupil diameter, thus the sensing error of the PWFS is much lower than that of the Shack-Hartmann sensor and is related to the extraction and alignment accuracy of pupil images. However, precise extraction of these images is difficult to conduct in practice. Aiming at improving the sensing accuracy, we analyzed the physical model of calibration of a PWFS and put forward an extraction algorithm. The process was verified via a closed-loop correction experiment. The results showed that the sensing accuracy of the PWFS increased after applying the calibration and extraction method. (c) 2017 Optical Society of America
收录类别	sci ; ei
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/59105
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Liu, Y.,Q. Q. Mu,Z. L. Cao,et al. Precise calibration of pupil images in pyramid wavefront sensor[J]. Applied Optics,2017,56(12).
APA	Liu, Y.,Q. Q. Mu,Z. L. Cao,L. F. Hu,&C. L. Yang and L. Xuan.(2017).Precise calibration of pupil images in pyramid wavefront sensor.Applied Optics,56(12).
MLA	Liu, Y.,et al."Precise calibration of pupil images in pyramid wavefront sensor".Applied Optics 56.12(2017).

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Precise calibration （1665KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	浏览下载