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Applied Optics

Applied Optics


  • Vol. 37, Iss. 11 — Apr. 10, 1998
  • pp: 2164–2169

Real-time optical aberration correction with a ferroelectric liquid-crystal spatial light modulator

Philip M. Birch, James Gourlay, Gordon D. Love, and Alan Purvis  »View Author Affiliations

Applied Optics, Vol. 37, Issue 11, pp. 2164-2169 (1998)

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Real-time correction of an optically aberrated wave front by use of a 10 × 10 ferroelectric liquid-crystal spatial light modulator as the correction device and a point-diffraction interferometer as the wave-front sensor is demonstrated. This type of interferometer requires no reference arm and so can be used, in theory, in an astronomical adaptive-optics system. We discuss some of the unusual features of the point-diffraction interferometer for wave-front sensing.

© 1998 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(160.3710) Materials : Liquid crystals
(230.6120) Optical devices : Spatial light modulators

Original Manuscript: February 20, 1997
Revised Manuscript: July 14, 1997
Published: April 10, 1998

Philip M. Birch, James Gourlay, Gordon D. Love, and Alan Purvis, "Real-time optical aberration correction with a ferroelectric liquid-crystal spatial light modulator," Appl. Opt. 37, 2164-2169 (1998)

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