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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 20 — Sep. 28, 2009
  • pp: 17279–17292

PSF halo reduction in adaptive optics using dynamic pupil masking

James Osborn, Richard M. Myers, and Gordon D. Love  »View Author Affiliations

Optics Express, Vol. 17, Issue 20, pp. 17279-17292 (2009)

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We describe a method to reduce residual speckles in an adaptive optics system which add to the halo of the point spread function (PSF). The halo is particularly problematic in astronomical applications involving the detection of faint companions. Areas of the pupil are selected where the residual wavefront aberrations are large and these are masked using a spatial light modulator. The method is also suitable for smaller telescopes without adaptive optics as a relatively simple method to increase the resolution of the telescope. We describe the principle of the technique and show simulation results.

© 2009 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(010.1330) Atmospheric and oceanic optics : Atmospheric turbulence
(010.1285) Atmospheric and oceanic optics : Atmospheric correction

ToC Category:
Adaptive Optics

Original Manuscript: July 8, 2009
Revised Manuscript: September 4, 2009
Manuscript Accepted: September 10, 2009
Published: September 14, 2009

James Osborn, Richard M. Myers, and Gordon D. Love, "PSF halo reduction in adaptive optics using dynamic pupil masking," Opt. Express 17, 17279-17292 (2009)

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