1. The adaptive optics modes for HARMONI: from Classical to Laser Assisted Tomographic AO
- Author
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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), and 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)
- Subjects
Diffraction ,Wavefront ,[SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] ,business.industry ,Computer science ,FOS: Physical sciences ,First light ,Laser ,01 natural sciences ,law.invention ,010309 optics ,Optics ,Laser guide star ,Integral field spectrograph ,law ,[SDU]Sciences of the Universe [physics] ,0103 physical sciences ,Pyramid (image processing) ,Astrophysics - Instrumentation and Methods for Astrophysics ,business ,Adaptive optics ,Instrumentation and Methods for Astrophysics (astro-ph.IM) ,010303 astronomy & astrophysics - 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., Comment: SPIE proceeding, 2016
- Published
- 2016