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Proceedings Paper

Merging light beams from the 4 VLT telescopes
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Paper Abstract

ESPRESSO is a fiber feed ultrastable High Resolution Spectrograph designed to work in the Combined-Coudé focus of Very Large Telescopes (VLT). A high resolution (R~100000) and an ultra-high resolution (R~220000) mode will be available to collect the light coming of one VLT telescope. In addition, ESPRESSO has an observing mode which allows to collect light of 2, 3 or 4 VLT units. This mode can feed simultaneously the spectrograph using a 4x1 fiber combiner. In the combiner, the light from 4 octagonal fibers will be mixed when projected onto a square fiber, as a double scrambler device. Here it is presented the design, manufacture, integration and tests for the 4x1 combiner of the ESPRESSO Fiber Link.

Paper Details

Date Published: 10 July 2018
PDF: 12 pages
Proc. SPIE 10706, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III, 1070628 (10 July 2018); doi: 10.1117/12.2312032
Show Author Affiliations
Felix Gracia Temich, Instituto de Astrofísica de Canarias (Spain)
José Luis Rasilla, Instituto de Astrofísica de Canarias (Spain)
Sergio Salata, AVS Added Value Solutions (Spain)
Francesco Pepe, Observatory of Geneva, Univ. of Geneva (Switzerland)
Gerardo Avila, European Southern Observatory (Germany)
Denis Mégevand, Observatory of Geneva, Univ. of Geneva (Switzerland)
Rafael Rebolo, Instituto de Astrofísica de Canarias (Spain)
Marco Riva, INAF - Osservatorio Astronomico di Brera (Italy)


Published in SPIE Proceedings Vol. 10706:
Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III
Ramón Navarro; Roland Geyl, Editor(s)

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