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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 52, Iss. 31 — Nov. 1, 2013
  • pp: 7554–7563

Calibrating a high-resolution wavefront corrector with a static focal-plane camera

Visa Korkiakoski, Niek Doelman, Johanan Codona, Matthew Kenworthy, Gilles Otten, and Christoph U. Keller  »View Author Affiliations


Applied Optics, Vol. 52, Issue 31, pp. 7554-7563 (2013)
http://dx.doi.org/10.1364/AO.52.007554


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Abstract

We present a method to calibrate a high-resolution wavefront (WF)-correcting device with a single, static camera, located in the focal-plane; no moving of any component is needed. The method is based on a localized diversity and differential optical transfer functions to compute both the phase and amplitude in the pupil plane located upstream of the last imaging optics. An experiment with a spatial light modulator shows that the calibration is sufficient to robustly operate a focal-plane WF sensing algorithm controlling a WF corrector with 40,000 degrees of freedom. We estimate that the locations of identical WF corrector elements are determined with a spatial resolution of 0.3% compared to the pupil diameter.

© 2013 Optical Society of America

OCIS Codes
(100.5070) Image processing : Phase retrieval
(110.4850) Imaging systems : Optical transfer functions
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(070.6120) Fourier optics and signal processing : Spatial light modulators
(110.1080) Imaging systems : Active or adaptive optics

ToC Category:
Imaging Systems

History
Original Manuscript: July 12, 2013
Revised Manuscript: October 1, 2013
Manuscript Accepted: October 1, 2013
Published: October 28, 2013

Citation
Visa Korkiakoski, Niek Doelman, Johanan Codona, Matthew Kenworthy, Gilles Otten, and Christoph U. Keller, "Calibrating a high-resolution wavefront corrector with a static focal-plane camera," Appl. Opt. 52, 7554-7563 (2013)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-52-31-7554


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