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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 46, Iss. 24 — Aug. 20, 2007
  • pp: 6176–6184

Comparison between a model-based and a conventional pyramid sensor reconstructor

Visa Korkiakoski, Christophe Vérinaud, Miska Le Louarn, and Rodolphe Conan  »View Author Affiliations


Applied Optics, Vol. 46, Issue 24, pp. 6176-6184 (2007)
http://dx.doi.org/10.1364/AO.46.006176


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Abstract

A model of a nonmodulated pyramid wavefront sensor (P-WFS) based on Fourier optics has been presented. Linearizations of the model represented as Jacobian matrices are used to improve the P-WFS phase estimates. It has been shown in simulations that a linear approximation of the P-WFS is sufficient in closed-loop adaptive optics. Also a method to compute model-based synthetic P-WFS command matrices is shown, and its performance is compared to the conventional calibration. It was observed that in poor visibility the new calibration is better than the conventional.

© 2007 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(070.2580) Fourier optics and signal processing : Paraxial wave optics

ToC Category:
Fourier Optics and Signal Processing

History
Original Manuscript: February 27, 2007
Revised Manuscript: May 16, 2007
Manuscript Accepted: June 13, 2007
Published: August 16, 2007

Citation
Visa Korkiakoski, Christophe Vérinaud, Miska Le Louarn, and Rodolphe Conan, "Comparison between a model-based and a conventional pyramid sensor reconstructor," Appl. Opt. 46, 6176-6184 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-24-6176

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