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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J Campillo
  • Vol. 32, Iss. 1 — Jan. 1, 2007
  • pp: 5–7

Wavefront sensorless adaptive optics for large aberrations

Martin J. Booth  »View Author Affiliations


Optics Letters, Vol. 32, Issue 1, pp. 5-7 (2007)
http://dx.doi.org/10.1364/OL.32.000005


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Abstract

In some adaptive optics systems the aberration is determined not by using a wavefront sensor but by sequential optimization of the adaptive correction element. Efficient schemes for the control of such systems are essential if they are to be effective. A scheme is introduced that permits the efficient measurement of large amplitude wavefront aberrations that are represented by an appropriate series of modes. This scheme uses an optimization metric based on the root-mean-square spot radius (or focal spot second moment) and an aberration expansion using polynomials suited to the representation of lateral aberrations. Experimental correction of N aberration modes is demonstrated with a minimum of N + 1 photodetector measurements. The geometrical optics basis means that the scheme can be extended to arbitrarily large aberrations.

© 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 ocean optics

History
Original Manuscript: August 30, 2006
Revised Manuscript: September 27, 2006
Manuscript Accepted: September 28, 2006
Published: December 13, 2006

Citation
Martin J. Booth, "Wavefront sensorless adaptive optics for large aberrations," Opt. Lett. 32, 5-7 (2007)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-32-1-5


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