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Proceedings Paper

System analysis and characterization of the FFREE bench
Author(s): Olivier Preis; Christophe Vérinaud; Jacopo Antichi; Noël Ventura
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Paper Abstract

Detection of exoplanets implies the measure of extremely weak signals, usually below intensity perturbations in the PSF caused by static aberrations. We have finished the construction of a new test bench called FFREE - Fresnel Free Experiment for EPICS. The scope of the FFREE experiment is the active speckles correction using off-line cancellation techniques: Electric Field Conjugation and Phase Diversity, in view of a future instrument EPICS for the telescope EELT (ESO). We will describe the system and discuss some characteristics like the chromatism and the environmental stability of the bench.

Paper Details

Date Published: 13 September 2012
PDF: 6 pages
Proc. SPIE 8447, Adaptive Optics Systems III, 84473X (13 September 2012); doi: 10.1117/12.925667
Show Author Affiliations
Olivier Preis, Institut de Planétologie et d'Astrophysique de Grenoble (France)
Christophe Vérinaud, Institut de Planétologie et d'Astrophysique de Grenoble (France)
Jacopo Antichi, INAF - Osservatorio Astronomico di Padova (Italy)
Noël Ventura, Institut de Planétologie et d'Astrophysique de Grenoble (France)

Published in SPIE Proceedings Vol. 8447:
Adaptive Optics Systems III
Brent L. Ellerbroek; Enrico Marchetti; Jean-Pierre Véran, Editor(s)

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