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Proceedings Paper

NAOMI: a new adaptive optics module for interferometry
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Paper 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.

Paper Details

Date Published: 24 July 2014
PDF: 9 pages
Proc. SPIE 9146, Optical and Infrared Interferometry IV, 91461C (24 July 2014); doi: 10.1117/12.2054730
Show Author Affiliations
Emmanuel Aller-Carpentier, European Southern Observatory (Germany)
Reinhold Dorn, European Southern Observatory (Germany)
Francoise Delplancke-Stroebele, European Southern Observatory (Germany)
Jérome Paufique, European Southern Observatory (Germany)
Luigi Andolfato, European Southern Observatory (Germany)
Christophe Dupuy, European Southern Observatory (Germany)
Enrico Fedrigo, European Southern Observatory (Germany)
Philippe Gitton, European Southern Observatory (Germany)
Paul Jolley, European Southern Observatory (Germany)
Paul Lilley, European Southern Observatory (Germany)
Miska Le Louarn, European Southern Observatory (Germany)
Than P. Duc, European Southern Observatory (Germany)
Andrew Rakich, European Southern Observatory (Germany)
Javier Reyes, European Southern Observatory (Germany)
Robert Ridings, European Southern Observatory (Germany)
Julien Woillez, European Southern Observatory (Germany)
Enrico Marchetti, European Southern Observatory (Germany)
Marcos Suarez Valles, European Southern Observatory (Germany)
Christian Schmid, European Southern Observatory (Germany)
Norbert Hubin, European Southern Observatory (Germany)
Jean-Philippe Berger, European Southern Observatory (Germany)
Jutta Quentin, European Southern Observatory (Germany)
Bernard-Alexis Delabre, European Southern Observatory (Germany)
Stewart McLay, European Southern Observatory (Germany)
Luca Pasquini, European Southern Observatory (Germany)


Published in SPIE Proceedings Vol. 9146:
Optical and Infrared Interferometry IV
Jayadev K. Rajagopal; Michelle J. Creech-Eakman; Fabien Malbet, Editor(s)

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