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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 14 — Jul. 15, 2013
  • pp: 16337–16352

Experimental validation of LIFT for estimation of low-order modes in low-flux wavefront sensing

C. Plantet, S. Meimon, J.-M. Conan, and T. Fusco  »View Author Affiliations

Optics Express, Vol. 21, Issue 14, pp. 16337-16352 (2013)

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Laser Tomographic and Multi-Conjugate Adaptive Optics systems rely on natural guide stars to sense low order aberrations (tip/tilt and focus). LIFT is a novel focal plane wavefront sensor (WFS), performing a maximum likelihood phase retrieval on a single image, with better sensitivity than a 2×2 Hartmann-Shack WFS. Its performance for the estimation of tip/tilt and focus is similar to a pyramid WFS without modulation, but with a simpler set-up. We present here the LIFT concept and associated data processing, as well as experimental results. We validate the estimation of tip/tilt and focus, with monochromatic and large bandwidth light, and verify the low noise sensitivity predicted by theory.

© 2013 OSA

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(010.7350) Atmospheric and oceanic optics : Wave-front sensing

ToC Category:
Adaptive Optics

Original Manuscript: February 19, 2013
Revised Manuscript: April 29, 2013
Manuscript Accepted: April 29, 2013
Published: July 2, 2013

C. Plantet, S. Meimon, J.-M. Conan, and T. Fusco, "Experimental validation of LIFT for estimation of low-order modes in low-flux wavefront sensing," Opt. Express 21, 16337-16352 (2013)

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