Detection error of Shack-Hartmann wavefront sensor

Wenhan Jiang; Hao Xian; Feng Shen

doi:10.1117/12.279060

17 October 1997 Detection error of Shack-Hartmann wavefront sensors

Wenhan Jiang, Hao Xian, Feng Shen

Proceedings Volume 3126, Adaptive Optics and Applications; (1997) https://doi.org/10.1117/12.279060
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

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.

Citation Download Citation

Wenhan Jiang, Hao Xian, and Feng Shen "Detection error of Shack-Hartmann wavefront sensors", Proc. SPIE 3126, Adaptive Optics and Applications, (17 October 1997); https://doi.org/10.1117/12.279060

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