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Optics Letters

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  • Vol. 29, Iss. 23 — Dec. 1, 2004
  • pp: 2743–2745

Improvement of Shack-Hartmann wave-front sensor measurement for extreme adaptive optics

M. Nicolle, T. Fusco, G. Rousset, and V. Michau  »View Author Affiliations


Optics Letters, Vol. 29, Issue 23, pp. 2743-2745 (2004)
http://dx.doi.org/10.1364/OL.29.002743


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Abstract

The development of high-performance adaptive optics systems requires the optimization of wave-front sensors (WFSs) working in the high-order correction regime. We propose a new method to improve the wave-front slope estimation of a Shack–Hartmann WFS in such a regime. Based on a detailed analysis of the different errors in the slope estimation with a classical centroid and with the new method, the gain in terms of wave-front-sensing accuracy in both the detector and the photon noise regimes is stressed. This improvement is proposed without major system disruption.

© 2004 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
(110.2990) Imaging systems : Image formation theory
(220.2740) Optical design and fabrication : Geometric optical design

Citation
M. Nicolle, T. Fusco, G. Rousset, and V. Michau, "Improvement of Shack-Hartmann wave-front sensor measurement for extreme adaptive optics," Opt. Lett. 29, 2743-2745 (2004)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-29-23-2743


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References

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  2. G. Rousset, in Adaptive Optics in Astronomy, F. Roddier, ed. (Cambridge U. Press, Cambridge, England, 1999), Chap. 5, pp. 91–130.
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