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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 7 — Mar. 29, 2010
  • pp: 6492–6505

Deformable mirror model for open-loop adaptive optics using multivariate adaptive regression splines

Dani Guzmán, Francisco Javier de Cos Juez, Fernando Sánchez Lasheras, Richard Myers, and Laura Young  »View Author Affiliations


Optics Express, Vol. 18, Issue 7, pp. 6492-6505 (2010)
http://dx.doi.org/10.1364/OE.18.006492


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Abstract

Open-loop adaptive optics is a technique in which the turbulent wavefront is measured before it hits the deformable mirror for correction. We present a technique to model a deformable mirror working in open-loop based on multivariate adaptive regression splines (MARS), a non-parametric regression technique. The model’s input is the wavefront correction to apply to the mirror and its output is the set of voltages to shape the mirror. We performed experiments with an electrostrictive deformable mirror, achieving positioning errors of the order of 1.2% RMS of the peak-to-peak wavefront excursion. The technique does not depend on the physical parameters of the device; therefore it may be included in the control scheme of any type of deformable mirror.

© 2010 OSA

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(010.1330) Atmospheric and oceanic optics : Atmospheric turbulence
(010.1285) Atmospheric and oceanic optics : Atmospheric correction

ToC Category:
Adaptive Optics

History
Original Manuscript: January 11, 2010
Revised Manuscript: February 19, 2010
Manuscript Accepted: February 22, 2010
Published: March 15, 2010

Citation
Dani Guzmán, Francisco Javier de Cos Juez, Fernando Sánchez Lasheras, Richard Myers, and Laura Young, "Deformable mirror model for open-loop adaptive optics using multivariate adaptive regression splines," Opt. Express 18, 6492-6505 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-7-6492


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