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Optics Letters

Optics Letters


  • Vol. 29, Iss. 23 — Dec. 1, 2004
  • pp: 2707–2709

Generalized phase diversity for wave-front sensing

Heather I. Campbell, Sijiong Zhang, Alan H. Greenaway, and Sergio Restaino  »View Author Affiliations

Optics Letters, Vol. 29, Issue 23, pp. 2707-2709 (2004)

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Phase diversity is a phase-retrieval algorithm that uses a pair of intensity images taken symmetrically about the wave front to be determined. If these images are taken about the system input pupil this is equivalent to a curvature-sensing algorithm. Traditionally a defocus aberration kernel is used to produce the phase-diverse data. We present a generalization of this method to allow the use of other functions as the diversity kernel. We discuss the necessary and sufficient conditions that such a function must satisfy for use in a null wave-front sensor. Computer simulations were used to validate these results.

© 2004 Optical Society of America

OCIS Codes
(010.0010) Atmospheric and oceanic optics : Atmospheric and oceanic optics
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(010.7350) Atmospheric and oceanic optics : Wave-front sensing

Heather I. Campbell, Sijiong Zhang, Alan H. Greenaway, and Sergio Restaino, "Generalized phase diversity for wave-front sensing," Opt. Lett. 29, 2707-2709 (2004)

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