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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Editor: Franco Gori
  • Vol. 29, Iss. 11 — Nov. 1, 2012
  • pp: 2328–2336

Wavefront reconstruction for extremely large telescopes via CuRe with domain decomposition

Matthias Rosensteiner  »View Author Affiliations

JOSA A, Vol. 29, Issue 11, pp. 2328-2336 (2012)

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The Cumulative Reconstructor is an accurate, extremely fast reconstruction algorithm for Shack–Hartmann wavefront sensor data. But it has shown an unacceptable high noise propagation for large apertures. Therefore, in this paper we describe a domain decomposition approach to deal with this drawback. We show that this adaptation of the algorithm gives the same reconstruction quality as the original algorithm and leads to a significant improvement with respect to noise propagation. The method is combined with an integral control and compared to the classical matrix vector multiplication algorithm on an end-to-end simulation of a single conjugate adaptive optics system. The reconstruction time is 20n (number of subapertures), and the method is parallelizable.

© 2012 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:
Atmospheric and Oceanic Optics

Original Manuscript: February 22, 2012
Revised Manuscript: September 18, 2012
Manuscript Accepted: September 18, 2012
Published: October 16, 2012

Matthias Rosensteiner, "Wavefront reconstruction for extremely large telescopes via CuRe with domain decomposition," J. Opt. Soc. Am. A 29, 2328-2336 (2012)

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