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Proceedings Paper

Performance of the PSD-based Hartmann-Shack wavefront sensor
Author(s): Kai Chen; Zeping Yang; Ende Li; Haiying Wang; Fan Yang; Yudong Zhang
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Paper Abstract

A novel PSD-based Hartmann-Shack wavefront sensor (HSWFS) prototype has been developed, which employs a 4X4 PSD array as the detector to measure the displacements of the sub-aperture spots. Compared with the conventional CCD-based HSWFS, it can operate at very high sampling rate, and it only has very short readout delay time. Our system can measure wavefront at frame rate up to 5KHz, and the detected wavefront error is less than λ/50 (λ=632.8nm). In this paper the experimental results are given. The measurement error of the PSD-based HSWFS for a given aberrated plate is compared with the measure result of the Zygo interferometer.

Paper Details

Date Published: 8 June 2006
PDF: 10 pages
Proc. SPIE 6018, 5th International Workshop on Adaptive Optics for Industry and Medicine, 60180V (8 June 2006); doi: 10.1117/12.669360
Show Author Affiliations
Kai Chen, Institute of Optics and Electronics (China)
Zeping Yang, Institute of Optics and Electronics (China)
Ende Li, Institute of Optics and Electronics (China)
Haiying Wang, Institute of Optics and Electronics (China)
Fan Yang, Institute of Optics and Electronics (China)
Yudong Zhang, Institute of Optics and Electronics (China)


Published in SPIE Proceedings Vol. 6018:
5th International Workshop on Adaptive Optics for Industry and Medicine
Wenhan Jiang, Editor(s)

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