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Real-time and post-facto correction for differential aberrations in direct planet imaging by adaptive optics

Published online by Cambridge University Press:  02 May 2006

J.-F. Sauvage ,
T. Fusco ,
G. Rousset  and
C. Petit
J.-F. Sauvage
Affiliation:
Département d'Optique Théorique et Appliquée, ONERA BP 72, 92322 Chtillon, France email: jean-francois.sauvage@onera.fr
T. Fusco
Affiliation:
Département d'Optique Théorique et Appliquée, ONERA BP 72, 92322 Chtillon, France email: jean-francois.sauvage@onera.fr
G. Rousset
Affiliation:
Département d'Optique Théorique et Appliquée, ONERA BP 72, 92322 Chtillon, France email: jean-francois.sauvage@onera.fr
C. Petit
Affiliation:
Département d'Optique Théorique et Appliquée, ONERA BP 72, 92322 Chtillon, France email: jean-francois.sauvage@onera.fr
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Abstract

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We present experimental results of a new procedure of measurement and pre-compensation of the non-common path aberrations in Adaptive Optics. A significant Strehl ratio increase (from 70 to 95.5 % in R band) is demonstrated.

Keywords

Adaptive opticsWave-front sensingPhase diversity
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 1 , Colloquium C200: Direct Imaging of Exoplanets: Science & Techniques , October 2005 , pp. 607 - 612
Copyright
© 2006 International Astronomical Union