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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Stephen A. Burns
  • Vol. 23, Iss. 9 — Sep. 1, 2006
  • pp: 2233–2245

Optimization of star-oriented and layer-oriented wavefront sensing concepts for ground layer adaptive optics

Magalie Nicolle, Thierry Fusco, Vincent Michau, Gérard Rousset, and Jean-Luc Beuzit  »View Author Affiliations


JOSA A, Vol. 23, Issue 9, pp. 2233-2245 (2006)
http://dx.doi.org/10.1364/JOSAA.23.002233


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Abstract

Multiconjugate adaptive optics is one of the major challenges in adaptive optics. It requires the measurement of the volumic distribution of the turbulence. Two wavefront sensing (WFS) concepts have been proposed to perform the wavefront analysis for such systems: the star-oriented and layer-oriented approaches. We give a performance analysis and a comparison of these two concepts in the framework of the simplest of the multi-guide-star adaptive optics systems, that is, ground layer adaptive optics. A phase-related criterion is proposed to assess analytically the performance of both concepts. This study highlights the main advantages and drawbacks of each WFS concept and shows how it is possible to optimize the concepts with respect to the signal to noise ratio on the phase measurement. A comparison of their optimized versions is provided and shows that one can expect very similar performance with the two optimized concepts.

© 2006 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(010.7350) Atmospheric and oceanic optics : Wave-front sensing

ToC Category:
Atmospheric and Oceanic Optics

History
Original Manuscript: February 3, 2006
Manuscript Accepted: March 10, 2006

Citation
Magalie Nicolle, Thierry Fusco, Vincent Michau, Gérard Rousset, and Jean-Luc Beuzit, "Optimization of star-oriented and layer-oriented wavefront sensing concepts for ground layer adaptive optics," J. Opt. Soc. Am. A 23, 2233-2245 (2006)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-23-9-2233

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