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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 8 — Apr. 21, 2014
  • pp: 9432–9441

Fast, compact, autonomous holographic adaptive optics

Geoff Andersen, Paul Gelsinger-Austin, Ravi Gaddipati, Phani Gaddipati, and Fassil Ghebremichael  »View Author Affiliations

Optics Express, Vol. 22, Issue 8, pp. 9432-9441 (2014)

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We present a closed-loop adaptive optics system based on a holographic sensing method. The system uses a multiplexed holographic recording of the response functions of each actuator in a deformable mirror. By comparing the output intensity measured in a pair of photodiodes, the absolute phase can be measured over each actuator location. From this a feedback correction signal is applied to the input beam without need for a computer. The sensing and correction is applied to each actuator in parallel, so the bandwidth is independent of the number of actuator. We demonstrate a breadboard system using a 32-actuator MEMS deformable mirror capable of operating at over 10kHz without a computer in the loop.

© 2014 Optical Society of America

OCIS Codes
(090.0090) Holography : Holography
(090.1000) Holography : Aberration compensation
(010.1285) Atmospheric and oceanic optics : Atmospheric correction
(110.1080) Imaging systems : Active or adaptive optics

ToC Category:
Adaptive Optics

Original Manuscript: December 4, 2013
Revised Manuscript: January 21, 2014
Manuscript Accepted: January 23, 2014
Published: April 11, 2014

Virtual Issues
April 22, 2014 Spotlight on Optics

Geoff Andersen, Paul Gelsinger-Austin, Ravi Gaddipati, Phani Gaddipati, and Fassil Ghebremichael, "Fast, compact, autonomous holographic adaptive optics," Opt. Express 22, 9432-9441 (2014)

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