NAOMI: a new adaptive optics module for interferometry

Emmanuel Aller-Carpentier; Reinhold Dorn; Francoise Delplancke-Stroebele; Jérome Paufique; Luigi Andolfato; Christophe Dupuy; Enrico Fedrigo; Philippe Gitton; Paul Jolley; Paul Lilley; Miska Le Louarn; Than P. Duc; Andrew Rakich; Javier Reyes; Robert Ridings; Julien Woillez; Enrico Marchetti; Marcos Suarez Valles; Christian Schmid; Norbert Hubin; Jean-Philippe Berger; Jutta Quentin; Bernard-Alexis Delabre; Stewart McLay; Luca Pasquini

doi:10.1117/12.2054730

24 July 2014 NAOMI: a new adaptive optics module for interferometry

Emmanuel Aller-Carpentier, Reinhold Dorn, Francoise Delplancke-Stroebele, Jérome Paufique, Luigi Andolfato, Christophe Dupuy, Enrico Fedrigo, Philippe Gitton, Paul Jolley, Paul Lilley, Miska Le Louarn, Than P. Duc, Andrew Rakich, Javier Reyes, Robert Ridings, Julien Woillez, Enrico Marchetti, Marcos Suarez Valles, Christian Schmid, Norbert Hubin, Jean-Philippe Berger, Jutta Quentin, Bernard-Alexis Delabre, Stewart McLay, Luca Pasquini

Author Affiliations +

Proceedings Volume 9146, Optical and Infrared Interferometry IV; 91461C (2014) https://doi.org/10.1117/12.2054730
Event: SPIE Astronomical Telescopes + Instrumentation, 2014, Montréal, Quebec, Canada

Abstract

The New Adaptive Optics Module for Interferometry (NAOMI)¹ is the future low order adaptive optics system to be developed for and installed at the ESO 1.8 m Auxiliary Telescopes (ATs). The four ATs² are designed for interferometry which they are essentially dedicated for. Currently the AT’s are equipped with a fast, visible tip-tilt sensor called STRAP³ (System for Tip/tilt Removal with Avalanche Photodiodes), and the corrections are applied through a tip-tilt mirror. The goal is to equip all four ATs with a low-order Shack-Hartmann system operating in the visible for the VLTI dual feed light beams in place of the current tip-tilt correction. Because of the limited size of the ATs (1.8m diameter), a low-order system will be sufficient. The goal is to concentrate the energy into a coherent core and to make the encircled energy (into the single mode fibers) stable and less dependent on the atmospheric conditions in order to increase the sensitivity of the interferometric instruments. The system will use the ESO real time computer platform Sparta-light as the baseline. This paper presents the preliminary design concept and outlines the benefits to current and future VLTI instruments.

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Emmanuel Aller-Carpentier, Reinhold Dorn, Francoise Delplancke-Stroebele, Jérome Paufique, Luigi Andolfato, Christophe Dupuy, Enrico Fedrigo, Philippe Gitton, Paul Jolley, Paul Lilley, Miska Le Louarn, Than P. Duc, Andrew Rakich, Javier Reyes, Robert Ridings, Julien Woillez, Enrico Marchetti, Marcos Suarez Valles, Christian Schmid, Norbert Hubin, Jean-Philippe Berger, Jutta Quentin, Bernard-Alexis Delabre, Stewart McLay, and Luca Pasquini "NAOMI: a new adaptive optics module for interferometry", Proc. SPIE 9146, Optical and Infrared Interferometry IV, 91461C (24 July 2014); https://doi.org/10.1117/12.2054730

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