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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 47, Iss. 4 — Feb. 1, 2008
  • pp: A62–A69

Holography-based wavefront sensing

F. Ghebremichael, Geoff P. Andersen, and Kenneth S. Gurley  »View Author Affiliations


Applied Optics, Vol. 47, Issue 4, pp. A62-A69 (2008)
http://dx.doi.org/10.1364/AO.47.000A62


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Abstract

We describe a modal wavefront sensing technique of using multiplexed holographic optical elements (HOEs). The phase pattern of a set of aberrations is angle multiplexed in a HOE, and the correlated information is obtained with a position sensing detector. The recorded aberration pattern is based on an orthogonal basis set, the Zernike polynomials, and a spherical reference wave. We show that only two recorded holographic patterns for any particular aberration type are sufficient to allow interpolated readout of aberrations to λ / 50 . In this paper, we demonstrate the capability of detecting errors between ± 2 λ   PV for each orthogonal set at rates limited only by the speeds of the detection electronics, which could be up to 1   MHz . We show how we take advantage of the unavoidable intermodal and intramodal cross talks in determining the type, amplitude, and orientation of the wavefront aberrations.

© 2008 Optical Society of America

OCIS Codes
(010.7350) Atmospheric and oceanic optics : Wave-front sensing
(090.2890) Holography : Holographic optical elements
(100.4550) Image processing : Correlators

History
Original Manuscript: February 5, 2007
Revised Manuscript: August 13, 2007
Manuscript Accepted: August 31, 2007
Published: October 31, 2007

Virtual Issues
Vol. 3, Iss. 3 Virtual Journal for Biomedical Optics

Citation
F. Ghebremichael, Geoff P. Andersen, and Kenneth S. Gurley, "Holography-based wavefront sensing," Appl. Opt. 47, A62-A69 (2008)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-47-4-A62

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