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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 10 — May. 15, 2014
  • pp: 2835–2837

Sensing more modes with fewer sub-apertures: the LIFTed Shack–Hartmann wavefront sensor

Serge Meimon, Thierry Fusco, Vincent Michau, and Cédric Plantet  »View Author Affiliations


Optics Letters, Vol. 39, Issue 10, pp. 2835-2837 (2014)
http://dx.doi.org/10.1364/OL.39.002835


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Abstract

We propose here a novel way to analyze Shack–Hartmann wavefront sensor images in order to retrieve more modes than the two centroid coordinates per sub-aperture. To do so, we use the linearized focal-plane technique (LIFT) phase retrieval method for each sub-aperture. We demonstrate that we can increase the number of modes sensed with the same computational burden per mode. For instance, we show the ability to control a 21×21 actuator deformable mirror using a 10×10 lenslet array.

© 2014 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(010.1330) Atmospheric and oceanic optics : Atmospheric turbulence
(030.4070) Coherence and statistical optics : Modes
(110.6770) Imaging systems : Telescopes

ToC Category:
Atmospheric and Oceanic Optics

History
Original Manuscript: February 20, 2014
Revised Manuscript: April 5, 2014
Manuscript Accepted: April 6, 2014
Published: May 5, 2014

Citation
Serge Meimon, Thierry Fusco, Vincent Michau, and Cédric Plantet, "Sensing more modes with fewer sub-apertures: the LIFTed Shack–Hartmann wavefront sensor," Opt. Lett. 39, 2835-2837 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-10-2835

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