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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 23 — Nov. 12, 2007
  • pp: 15293–15307

Pupil stabilization for SPHERE’s extreme AO and high performance coronagraph system.

Guillaume Montagnier, Thierry Fusco, Jean-Luc Beuzit, David Mouillet, Julien Charton, and Laurent Jocou  »View Author Affiliations


Optics Express, Vol. 15, Issue 23, pp. 15293-15307 (2007)
http://dx.doi.org/10.1364/OE.15.015293


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Abstract

We propose a new concept of pupil motion sensor for astronomical adaptive optics systems and present experimental results obtained during the first laboratory validation of this concept. Pupil motion is an important issue in the case of extreme adaptive optics, high contrast systems, such as the proposed Planet Finder instruments for the ESO and Gemini 8-meter telescopes. Such high contrast imaging instruments will definitively require pupil stabilization to minimize the effect of quasi-static aberrations. The concept for pupil stabilization we propose uses the flux information from the AO system wave-front sensor to drive in closed loop a pupil tip-tilt mirror located in a focal plane. A laboratory experiment validates this concept and demonstrates its interest for high contrast imaging instrument.

© 2007 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(220.4830) Optical design and fabrication : Systems design

ToC Category:
Adaptive Optics

History
Original Manuscript: July 25, 2007
Revised Manuscript: September 13, 2007
Manuscript Accepted: September 13, 2007
Published: November 2, 2007

Citation
Guillaume Montagnier, Thierry Fusco, Jean-Luc Beuzit, David Mouillet, Julien Charton, and Laurent Jocou, "Pupil stabilization for SPHERE’s extreme AO and high performance coronagraph system.," Opt. Express 15, 15293-15307 (2007)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-15-23-15293


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