21 July 2014 The NGS Pyramid wavefront sensor for ERIS
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Abstract
ERIS is the new Single Conjugate Adaptive Optics (AO) instrument for VLT in construction at ESO with the collaboration of Max-Planck Institut fuer Extraterrestrische Physik, ETH-Institute for Astronomy and INAF - Osservatorio Astrofisico di Arcetri. The ERIS AO system relies on a 40×40 sub-aperture Pyramid Wavefront Sensor (PWFS) for two operating modes: a pure Natural Guide Star high-order sensing for high Strehl and contrast correction and a low-order visible sensing in support of the Laser Guide Star AO mode. In this paper we present in detail the preliminary design of the ERIS PWFS that is developed under the responsibility of INAF-Osservatorio Astrofisico di Arcetri in collaboration with ESO.
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A. Riccardi, J. Antichi, F. Quirós-Pacheco, S. Esposito, L. Carbonaro, G. Agapito, V. Biliotti, R. Briguglio, G. Di Rico, M. Dolci, D. Ferruzzi, E. Pinna, A. Puglisi, M. Xompero, E. Marchetti, E. Fedrigo, M. Le Louarn, R. Conzelmann, B. Delabre, P. Amico, N. Hubin, "The NGS Pyramid wavefront sensor for ERIS", Proc. SPIE 9148, Adaptive Optics Systems IV, 91483D (21 July 2014); doi: 10.1117/12.2057920; https://doi.org/10.1117/12.2057920
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