Performance analysis of shack-hartman wavefront sensor with variable subaperture pixels

被引：5

作者：

Zhang, A ^{[1
]}

Rao, CH ^{[1
]}

Zhang, YD ^{[1
]}

Jiang, WH ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Opt & Elect, Lab Adapt Opt, Chengdu 610209, Peoples R China

来源：

ADVANCEMENTS IN ADAPTIVE OPTICS, PTS 1-3 | 2004年 / 5490卷

关键词：

Shack-Hartmann wavefront sensor; sampling error; readout noise; photon noise;

D O I：

10.1117/12.549403

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The major error source of Shack-Hartmann wavefront sensor consists of the photon noise, the readout noise, and the sampling error. In this paper, the measurement error of Shack-Hartmann wavefront sensor with variable subaperture pixels is analyzed under the consideration of various threshold values and detecting dynamic ranges. A generalized expression, which is used for fitting the sampling error of Shack-Hartmann wavefront sensor with variable subaperture pixels, is presented. The computational results and the experimental results of the measurement error of Shack-Hartmann wavefront sensor with different pixels per subaperture are also given.

引用

页码：1268 / 1277

页数：10

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