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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 34, Iss. 11 — Jun. 1, 2009
  • pp: 1690–1692

Detecting higher-order wavefront errors with an astigmatic hybrid wavefront sensor

Shane Barwick  »View Author Affiliations


Optics Letters, Vol. 34, Issue 11, pp. 1690-1692 (2009)
http://dx.doi.org/10.1364/OL.34.001690


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Abstract

The reconstruction of wavefront errors from measurements over subapertures can be made more accurate if a fully characterized quadratic surface can be fitted to the local wavefront surface. An astigmatic hybrid wavefront sensor with added neural network postprocessing is shown to have this capability, provided that the focal image of each subaperture is sufficiently sampled. Furthermore, complete local curvature information is obtained with a single image without splitting beam power.

© 2009 Optical Society of America

OCIS Codes
(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:
Imaging Systems

History
Original Manuscript: March 10, 2009
Revised Manuscript: April 16, 2009
Manuscript Accepted: April 23, 2009
Published: May 28, 2009

Citation
Shane Barwick, "Detecting higher-order wavefront errors with an astigmatic hybrid wavefront sensor," Opt. Lett. 34, 1690-1692 (2009)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-11-1690

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