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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 37, Iss. 18 — Sep. 15, 2012
  • pp: 3813–3815

Wavefront sensing using diffractive elements

Manuel P. Cagigal and Pedro J. Valle  »View Author Affiliations


Optics Letters, Vol. 37, Issue 18, pp. 3813-3815 (2012)
http://dx.doi.org/10.1364/OL.37.003813


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Abstract

In this Letter, we introduce a wavefront slope sensor based on a diffractive element. The diffractive element wavefront sensor (DEWS) produces four double overlapping copies of the incoming wavefront acting like a combination of shearing and pyramidal sensors. The DEWS allows a simple and fast slope estimate. The wavefront sampling can be as high as the number of pixel assigned to cover a wavefront copy, and it can be modified with only binning the CCD pixels. The theory for designing the sensor, its application to extract local slope information, and a simple noise analysis are presented. An application example for atmosphere aberrated wavefronts is demonstrated.

© 2012 Optical Society of America

OCIS Codes
(010.1330) Atmospheric and oceanic optics : Atmospheric turbulence
(010.7350) Atmospheric and oceanic optics : Wave-front sensing
(050.1970) Diffraction and gratings : Diffractive optics

ToC Category:
Atmospheric and Oceanic Optics

History
Original Manuscript: June 29, 2012
Revised Manuscript: July 20, 2012
Manuscript Accepted: July 23, 2012
Published: September 7, 2012

Citation
Manuel P. Cagigal and Pedro J. Valle, "Wavefront sensing using diffractive elements," Opt. Lett. 37, 3813-3815 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-18-3813


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