ARGOS wavefront sensing: from detection to correction

Gilles Orban de Xivry; M. Bonaglia; J. Borelli; L. Busoni; C. Connot; S. Esposito; W. Gaessler; M. Kulas; T. Mazzoni; A. Puglisi; S. Rabien; J. Storm; J. Ziegleder

doi:10.1117/12.2056458

7 August 2014 ARGOS wavefront sensing: from detection to correction

Gilles Orban de Xivry, M. Bonaglia, J. Borelli, L. Busoni, C. Connot, S. Esposito, W. Gaessler, M. Kulas, T. Mazzoni, A. Puglisi, S. Rabien, J. Storm, J. Ziegleder

Author Affiliations +

Proceedings Volume 9148, Adaptive Optics Systems IV; 914834 (2014) https://doi.org/10.1117/12.2056458
Event: SPIE Astronomical Telescopes + Instrumentation, 2014, Montréal, Quebec, Canada

Abstract

Argos is the ground-layer adaptive optics system for the Large Binocular Telescope. In order to perform its wide-field correction, Argos uses three laser guide stars which sample the atmospheric turbulence. To perform the correction, Argos has at disposal three different wavefront sensing measurements : its three laser guide stars, a NGS tip-tilt, and a third wavefront sensor. We present the wavefront sensing architecture and its individual components, in particular: the finalized Argos pnCCD camera detecting the 3 laser guide stars at 1kHz, high quantum efficiency and 4e^- noise; the Argos tip-tilt sensor based on a quad-cell avalanche photo-diodes; and the Argos wavefront computer. Being in the middle of the commissioning, we present the first wavefront sensing configurations and operations performed at LBT, and discuss further improvements in the measurements of the 3 laser guide star slopes as detected by the pnCCD.

Citation Download Citation

Gilles Orban de Xivry, M. Bonaglia, J. Borelli, L. Busoni, C. Connot, S. Esposito, W. Gaessler, M. Kulas, T. Mazzoni, A. Puglisi, S. Rabien, J. Storm, and J. Ziegleder "ARGOS wavefront sensing: from detection to correction", Proc. SPIE 9148, Adaptive Optics Systems IV, 914834 (7 August 2014); https://doi.org/10.1117/12.2056458

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available