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The adaptive optics modes for HARMONI: from Classical to Laser Assisted Tomographic AO

Authors :
Neichel, B.
Fusco, T.
Sauvage, J. -F.
Correia, C.
Dohlen, K.
El-Hadi, K.
Blanco, L.
Schwartz, N.
Clarke, F.
Thatte, N.
Tecza, M.
Paufique, J.
Vernet, J.
Louarn, M. Le
Hammersley, P.
Gach, J. -L.
Pascal, S.
Vola, P.
Petit, C.
Conan, J. -M.
Carlotti, A.
Verinaud, C.
Schnetler, H.
Bryson, I.
Morris, T.
Myers, R.
Hugot, E.
Gallie, A.
Marchetti, Enrico
Close, Laird
Véran, Jean-Pierre
Le Louarn, M.
Gach, L.
Conan, M.
Vérinaud, C.
Gallie, M.
Henry, M.
Laboratoire d'Astrophysique de Marseille (LAM)
Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)
ONERA - The French Aerospace Lab [Châtillon]
ONERA-Université Paris Saclay (COmUE)
Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Aix Marseille Université (AMU)-Centre National d'Études Spatiales [Toulouse] (CNES)
Source :
SPIE Astronomical Telescopes + Instrumentation, SPIE Astronomical Telescopes + Instrumentation, Jul 2016, Edinburgh, France. pp.990909, ⟨10.1117/12.2231681⟩
Publication Year :
2016
Publisher :
HAL CCSD, 2016.

Abstract

HARMONI is a visible and NIR integral field spectrograph, providing the E-ELT's core spectroscopic capability at first light. HARMONI will work at the diffraction limit of the E-ELT, thanks to a Classical and a Laser Tomographic AO system. In this paper, we present the system choices that have been made for these SCAO and LTAO modules. In particular, we describe the strategy developed for the different Wave-Front Sensors: pyramid for SCAO, the LGSWFS concept, the NGSWFS path, and the truth sensor capabilities. We present first potential implementations. And we asses the first system performance.<br />Comment: SPIE proceeding, 2016

Details

Language :
English
Database :
OpenAIRE
Journal :
SPIE Astronomical Telescopes + Instrumentation, SPIE Astronomical Telescopes + Instrumentation, Jul 2016, Edinburgh, France. pp.990909, ⟨10.1117/12.2231681⟩
Accession number :
edsair.doi.dedup.....7f3e97fb7d96e918586db947157d61da