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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 52, Iss. 12 — Apr. 20, 2013
  • pp: 2640–2652

Preprocessed cumulative reconstructor with domain decomposition: a fast wavefront reconstruction method for pyramid wavefront sensor

Iuliia Shatokhina, Andreas Obereder, Matthias Rosensteiner, and Ronny Ramlau  »View Author Affiliations


Applied Optics, Vol. 52, Issue 12, pp. 2640-2652 (2013)
http://dx.doi.org/10.1364/AO.52.002640


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Abstract

We present a fast method for the wavefront reconstruction from pyramid wavefront sensor (P-WFS) measurements. The method is based on an analytical relation between pyramid and Shack–Hartmann sensor (SH-WFS) data. The algorithm consists of two steps—a transformation of the P-WFS data to SH data, followed by the application of cumulative reconstructor with domain decomposition, a wavefront reconstructor from SH-WFS measurements. The closed loop simulations confirm that our method provides the same quality as the standard matrix vector multiplication method. A complexity analysis as well as speed tests confirm that the method is very fast. Thus, the method can be used on extremely large telescopes, e.g., for eXtreme adaptive optics systems.

© 2013 Optical Society of America

OCIS Codes
(000.3860) General : Mathematical methods in physics
(010.7350) Atmospheric and oceanic optics : Wave-front sensing
(350.1260) Other areas of optics : Astronomical optics
(110.1080) Imaging systems : Active or adaptive optics

ToC Category:
Wave-front Sensing

History
Original Manuscript: December 18, 2012
Revised Manuscript: March 11, 2013
Manuscript Accepted: March 12, 2013
Published: April 15, 2013

Citation
Iuliia Shatokhina, Andreas Obereder, Matthias Rosensteiner, and Ronny Ramlau, "Preprocessed cumulative reconstructor with domain decomposition: a fast wavefront reconstruction method for pyramid wavefront sensor," Appl. Opt. 52, 2640-2652 (2013)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-52-12-2640


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References

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