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Proceedings Paper

Phasing segmented telescopes with long-exposure phase diversity images
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Paper Abstract

One of the major issues in new Extremely Large Telescopes is the phasing of their primary segmented mirror. A cophasing sensor is mandatory to achieve the ultimate resolution of the telescope. Phase diversity (PD) is a light-hardware cophasing technique. In this paper, we show that this technique is suited to segmented pupil instruments, such as the E-ELT.

Paper Details

Date Published: 22 July 2008
PDF: 10 pages
Proc. SPIE 7012, Ground-based and Airborne Telescopes II, 701214 (22 July 2008); doi: 10.1117/12.787835
Show Author Affiliations
Serge Meimon, Office National d'Etudes et de Recherches Aerospatiales (France)
Observatoire de Paris, CNRS, and Univ. Denis Diderot Paris 7 (France)
Enguerran Delavaquerie, Office National d'Etudes et de Recherches Aerospatiales (France)
Observatoire de Paris, CNRS, and Univ. Denis Diderot Paris 7 (France)
Frédéric Cassaing, Office National d'Etudes et de Recherches Aerospatiales (France)
Observatoire de Paris, CNRS, and Univ. Denis Diderot Paris 7 (France)
Thierry Fusco, Office National d'Etudes et de Recherches Aerospatiales (France)
Observatoire de Paris, CNRS, and Univ. Denis Diderot Paris 7 (France)
Laurent M. Mugnier, Office National d'Etudes et de Recherches Aerospatiales (France)
Observatoire de Paris, CNRS, and Univ. Denis Diderot Paris 7 (France)
Vincent Michau, Office National d'Etudes et de Recherches Aerospatiales (France)
Observatoire de Paris, CNRS, and Univ. Denis Diderot Paris 7 (France)


Published in SPIE Proceedings Vol. 7012:
Ground-based and Airborne Telescopes II
Larry M. Stepp; Roberto Gilmozzi, Editor(s)

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