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Proceedings Paper

Design, development, and performance of the fibres of MOONS
Author(s): Isabelle Guinouard; Gerardo Avila; David Lee; Jean-Philippe Amans; Phil Rees; William Taylor; Ernesto Oliva
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Paper Abstract

The Multi-Object Optical and Near-infrared Spectrograph (MOONS) will exploit the full 500 square arcmin field of view offered by the Nasmyth focus of the Very Large Telescope and will be equipped with two identical triple arm cryogenic spectrographs covering the wavelength range 0.64μm-1.8μm, with a multiplex capability of over 1000 fibres. Each spectrograph will produce spectra for 500 targets simultaneously, each with its own dedicated sky fibre for optimal sky subtraction. The system will have both a medium resolution (R~4000-6000) mode and a high resolution (R~20000) mode.

The fibres are used to pick off each sub field of 1" and are used to transport the light from the instrument focal plane to the two spectrographs. Each fibre has a microlens to focus the beam into the fibre at a relative fast focal ratio of F/3.65 to reduce the Focal Ratio Degradation (FRD).

Paper Details

Date Published: 22 July 2016
PDF: 11 pages
Proc. SPIE 9912, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II, 99125G (22 July 2016); doi: 10.1117/12.2231413
Show Author Affiliations
Isabelle Guinouard, GEPI, Observatoire de Paris, CNRS, Univ. Paris Diderot (France)
Gerardo Avila, European Southern Observatory (Germany)
David Lee, UK Astronomy Technology Ctr. (United Kingdom)
Jean-Philippe Amans, GEPI, Observatoire de Paris, CNRS, Univ. Paris Diderot (France)
Phil Rees, UK Astronomy Technology Ctr. (United Kingdom)
William Taylor, UK Astronomy Technology Ctr. (United Kingdom)
Ernesto Oliva, INAF - Osservatorio Astrofisico di Arcetri (Italy)


Published in SPIE Proceedings Vol. 9912:
Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II
Ramón Navarro; James H. Burge, Editor(s)

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