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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 47, Iss. 9 — Mar. 20, 2008
  • pp: 1317–1326

Laboratory demonstration of accurate and efficient nanometer-level wavefront control for extreme adaptive optics

Lisa A. Poyneer, Daren Dillon, Sandrine Thomas, and Bruce A. Macintosh  »View Author Affiliations

Applied Optics, Vol. 47, Issue 9, pp. 1317-1326 (2008)

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A 32 × 32 microelectricalmechanical systems mirror is controlled in a closed-loop adaptive optics test bed with a spatially filtered wavefront sensor (WFS), Fourier transform wavefront reconstruction, and calibration of references with a high-precision interferometer. When correcting the inherent aberration of the mirror, 0.7 nm rms phase error in the controllable band is achieved. When correcting an etched phase plate with atmospheric statistics, a dark hole 10 3 deeper than the uncontrollable phase is produced in the phase power spectral density. Compensation of the mirror’s influence function is done with a Fourier filter, which results in improved loop convergence. Use of the spatial filter is shown to reduce the gain variability of the WFS in a quadcell configuration.

© 2008 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(010.7350) Atmospheric and oceanic optics : Wave-front sensing
(230.3990) Optical devices : Micro-optical devices
(350.1260) Other areas of optics : Astronomical optics

ToC Category:
Atmospheric and Oceanic Optics

Original Manuscript: September 19, 2007
Revised Manuscript: December 21, 2007
Manuscript Accepted: January 4, 2008
Published: March 19, 2008

Lisa A. Poyneer, Daren Dillon, Sandrine Thomas, and Bruce A. Macintosh, "Laboratory demonstration of accurate and efficient nanometer-level wavefront control for extreme adaptive optics," Appl. Opt. 47, 1317-1326 (2008)

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  1. B. Macintosh, J. Graham, D. Palmer, R. Doyon, D. Gavel, J. Larkin, B. Oppenheimer, L. Saddlemyer, J. K. Wallace, B. Bauman, J. Evans, D. Erikson, K. Morzinski, D. Phillion, L. Poyneer, A. Sivaramakrishnan, R. Soummer, S. Thibault, and J.-P. Véran, “The Gemini planet imager,” Proc. SPIE 6272, 62720L (2006). [CrossRef]
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  12. L. A. Poyneer, J.-P. Véran, D. Dillon, S. Severson, and B. A. Macintosh, “Wavefront control for the gemini planet imager,” Proc. SPIE 6272, 62721N (2006). [CrossRef]
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  17. L. A. Poyneer, D. W. Palmer, K. N. LaFortune, and B. Bauman, “Experimental results for correlation-based wavefront sensing,” Proc. SPIE 5894, 58940N (2005). [CrossRef]
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  19. J. W. Evans, Lawrence Livermore National Laboratory, Livermore, Calif. 94550 (personal communication, 2007).
  20. K. L. Baker, E. A. Stappaerts, D. Gavel, S. C. Wilks, J. Tucker, D. A. Silva, J. Olsen, S. S. Olivier, P. E. Young, M. W. Kartz, L. M. Flath, P. Krulevitch, J. Crawford, and O. Azucena, “Breadboard testing of a phase-conjugate engine with an interferometric wave-front sensor and a microelectromechanical systems-based spatial light modulator,” Appl. Opt. 43, 5585-5593 (2004). [CrossRef] [PubMed]
  21. K. M. Morzinski, J. W. Evans, S. Severson, B. Macintosh, D. Dillon, D. Gavel, C. Max, and D. Palmer, “Characterizing the potential of MEMS deformable mirrors for astronomical adaptive optics,” Proc. SPIE 6272, 627221 (2006). [CrossRef]
  22. L. A. Poyneer and B. A. Macintosh, “Optimal Fourier control performance and speckle behavior in high-contrast imaging with adaptive optics,” Opt. Express 14, 7499-7514 (2006). [CrossRef] [PubMed]

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