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Proceedings Paper

Detection error of Shack-Hartmann wavefront sensors
Author(s): Wenhan Jiang; Hao Xian; Feng Shen
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Paper Abstract

The detecting error of Shack-Hartmann (S-H) sensor is one of the main error sources in adaptive pptical systems. In this paper the main sources of S-H sensor for both of the systematic error and random noise are analyzed. These factors are readout noise and background level of CCD camera, number of detecting pixels, and photon shot noise. Setting a threshold level in processing centroid of Hartmann spots is benefit for improving detecting accuracy. The theoretical analysis and experimental results are presented in this paper.

Paper Details

Date Published: 17 October 1997
PDF: 11 pages
Proc. SPIE 3126, Adaptive Optics and Applications, (17 October 1997); doi: 10.1117/12.279060
Show Author Affiliations
Wenhan Jiang, Institute of Optics and Electronics (China)
Hao Xian, Institute of Optics and Electronics (China)
Feng Shen, Institute of Optics and Electronics (China)


Published in SPIE Proceedings Vol. 3126:
Adaptive Optics and Applications
Robert K. Tyson; Robert Q. Fugate, Editor(s)

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