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Proceedings Paper

Fine calibration and pre-compensation of non-nommon path aberrations for high performance AO system
Author(s): J.-F. Sauvage; T. Fusco; G. Rousset; C. Petit; B. Neichel; A. Blanc; J.-L. Beuzit
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Paper Abstract

Non common path aberrations (NCPA) are one of the main limitations to achieve ultimate performance of an adaptive optic system. These static optical aberrations are unseen by the wave front sensor and therefore not corrected by closed AO loop. We present experimental results of a new procedure of measurement and pre-compensation of the AO non-common path aberrations. This new procedure has been studied with simulations, and tested on the AO bench (BOA) at ONERA. Strehl Ratio (SR) obtained on the imaging path reaches 93 % @ 632.8 nm even for low SNR.

Paper Details

Date Published: 25 August 2005
PDF: 8 pages
Proc. SPIE 5903, Astronomical Adaptive Optics Systems and Applications II, 59030B (25 August 2005); doi: 10.1117/12.618278
Show Author Affiliations
J.-F. Sauvage, Office National d'Etudes et de Recherches Aerospatiales (France)
T. Fusco, Office National d'Etudes et de Recherches Aerospatiales (France)
G. Rousset, Office National d'Etudes et de Recherches Aerospatiales (France)
C. Petit, Office National d'Etudes et de Recherches Aerospatiales (France)
B. Neichel, Office National d'Etudes et de Recherches Aerospatiales (France)
A. Blanc, Office National d'Etudes et de Recherches Aerospatiales (France)
Lab. d'Astrophysique de l'Observatoire Grenoble (France)
J.-L. Beuzit, Lab. d'Astrophysique de l'Observatoire Grenoble (France)


Published in SPIE Proceedings Vol. 5903:
Astronomical Adaptive Optics Systems and Applications II
Robert K. Tyson; Michael Lloyd-Hart, Editor(s)

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