The ERIS adaptive optics system

Enrico Marchetti; Enrico Fedrigo; Miska Le Louarn; Pierre-Yves Madec; Christian Soenke; Roland Brast; Ralf Conzelmann; Bernard Delabre; Michel Duchateau; Christoph Frank; Barbara Klein; Paola Amico; Norbert Hubin; Simone Esposito; Jacopo Antichi; Luca Carbonaro; Alfio Puglisi; Fernando Quirós-Pacheco; Armando Riccardi; Marco Xompero

doi:10.1117/12.2055155

21 July 2014 The ERIS adaptive optics system

Enrico Marchetti, Enrico Fedrigo, Miska Le Louarn, Pierre-Yves Madec, Christian Soenke, Roland Brast, Ralf Conzelmann, Bernard Delabre, Michel Duchateau, Christoph Frank, Barbara Klein, Paola Amico, Norbert Hubin, Simone Esposito, Jacopo Antichi, Luca Carbonaro, Alfio Puglisi, Fernando Quirós-Pacheco, Armando Riccardi, Marco Xompero

Author Affiliations +

Proceedings Volume 9148, Adaptive Optics Systems IV; 914826 (2014) https://doi.org/10.1117/12.2055155
Event: SPIE Astronomical Telescopes + Instrumentation, 2014, Montréal, Quebec, Canada

Abstract

The Enhanced Resolution Imager and Spectrograph (ERIS) is the new Adaptive Optics based instrument for ESO’s VLT aiming at replacing NACO and SINFONI to form a single compact facility with AO fed imaging and integral field unit spectroscopic scientific channels. ERIS completes the instrument suite at the VLT adaptive telescope. In particular it is equipped with a versatile AO system that delivers up to 95% Strehl correction in K band for science observations up to 5 micron It comprises high order NGS and LGS correction enabling the observation from exoplanets to distant galaxies with a large sky coverage thanks to the coupling of the LGS WFS with the high sensitivity of its visible WFS and the capability to observe in dust embedded environment thanks to its IR low order WFS. ERIS will be installed at the Cassegrain focus of the VLT unit hosting the Adaptive Optics Facility (AOF). The wavefront correction is provided by the AOF deformable secondary mirror while the Laser Guide Star is provided by one of the four launch units of the 4 Laser Guide Star Facility for the AOF. The overall layout of the ERIS AO system is extremely compact and highly optimized: the SPIFFI spectrograph is fed directly by the Cassegrain focus and both the NIX’s (IR imager) and SPIFFI’s entrance windows work as visible/infrared dichroics. In this paper we describe the concept of the ERIS AO system in detail, starting from the requirements and going through the estimated performance, the opto-mechanical design and the Real-Time Computer design.

Citation Download Citation

Enrico Marchetti, Enrico Fedrigo, Miska Le Louarn, Pierre-Yves Madec, Christian Soenke, Roland Brast, Ralf Conzelmann, Bernard Delabre, Michel Duchateau, Christoph Frank, Barbara Klein, Paola Amico, Norbert Hubin, Simone Esposito, Jacopo Antichi, Luca Carbonaro, Alfio Puglisi, Fernando Quirós-Pacheco, Armando Riccardi, and Marco Xompero "The ERIS adaptive optics system", Proc. SPIE 9148, Adaptive Optics Systems IV, 914826 (21 July 2014); https://doi.org/10.1117/12.2055155

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