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Proceedings Paper

Wavefront sensor design for the GMT natural guide star AO system
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Paper Abstract

The paper presents the preliminary design of theNat ural Guide Star Wavefront Sensor for the single conjugate AO system of the GMT telescope. The NGS Wavefront Sensor (NGWS), already identified as a pyramid sensor, will be in charge of the entire wavefront error measurement namely atmospheric turbulence and telescope aberrations, including the segment differential piston error. The paper describes the WFS opto-mechanical design with particular emphasis on the WFS board. Numerical simulations of the GMT NGS AO system are performed taking into account the main characteristics of the considered WFS unit. The simulations take into account correction of the atmospheric perturbation and control of the differential pistons of the GMT segments.

Paper Details

Date Published: 13 September 2012
PDF: 10 pages
Proc. SPIE 8447, Adaptive Optics Systems III, 84471L (13 September 2012); doi: 10.1117/12.927158
Show Author Affiliations
S. Esposito, INAF - Osservatorio Astrofisico di Arcetri (Italy)
E. Pinna, INAF - Osservatorio Astrofisico di Arcetri (Italy)
F. Quirós-Pacheco, INAF - Osservatorio Astrofisico di Arcetri (Italy)
A. T. Puglisi, INAF - Osservatorio Astrofisico di Arcetri (Italy)
L. Carbonaro, INAF - Osservatorio Astrofisico di Arcetri (Italy)
M. Bonaglia, INAF - Osservatorio Astrofisico di Arcetri (Italy)
V. Biliotti, INAF - Osservatorio Astrofisico di Arcetri (Italy)
R. Briguglio, INAF - Osservatorio Astrofisico di Arcetri (Italy)
G. Agapito, INAF - Osservatorio Astrofisico di Arcetri (Italy)
C. Arcidiacono, INAF - Osservatorio Astrofisico di Bologna (Italy)
L. Busoni, INAF - Osservatorio Astrofisico di Arcetri (Italy)
M. Xompero, INAF - Osservatorio Astrofisico di Arcetri (Italy)
A. Riccardi, INAF - Osservatorio Astrofisico di Arcetri (Italy)
L. Fini, INAF - Osservatorio Astrofisico di Arcetri (Italy)
A. Bouchez, Giant Magellan Telescope Organization Corp. (United States)


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

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