MARVEL: optical fiber link

Gerardo Avila; Gert Raskin; Christian Schwab; Jacob Pember; Bart Vandenbussche; Hans Van Winckel; Carlos Guirao; Roman Guemperlein; Julian Stürmer

doi:10.1117/12.2627382

8 September 2022 MARVEL: optical fiber link

Gerardo Avila, Gert Raskin, Christian Schwab, Jacob Pember, Bart Vandenbussche, Hans Van Winckel, Carlos Guirao, Roman Guemperlein, Julian Stürmer

Author Affiliations +

Proceedings Volume 12184, Ground-based and Airborne Instrumentation for Astronomy IX; 121844G (2022) https://doi.org/10.1117/12.2627382
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Abstract

MARVEL is a novel facility, consisting of an array of four robotic 80-cm telescopes and one highresolution Èchelle spectrograph. It targets extreme precision radial velocity observations for measuring the mass of exoplanets. The MARVEL spectrograph will be linked to the telescopes through a set of optical fibres. This fibre link consists of a combination of circular and octagonal fibres in an effort to maximize the photometric scrambling gain and hence, the illumination stability of the spectrograph. In this contribution, we present the design of the fibre link, as well as the results of a test campaign that evaluated the relevant characteristics of several circular and octagonal fibres. Based on this, we also report on the expected performances of the MARVEL fibre link.

Citation Download Citation

Gerardo Avila, Gert Raskin, Christian Schwab, Jacob Pember, Bart Vandenbussche, Hans Van Winckel, Carlos Guirao, Roman Guemperlein, and Julian Stürmer "MARVEL: optical fiber link", Proc. SPIE 12184, Ground-based and Airborne Instrumentation for Astronomy IX, 121844G (8 September 2022); https://doi.org/10.1117/12.2627382

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