SPICA, a new 6T visible beam combiner for CHARA: science, design and interfaces

Denis Mourard; Nicolas Nardetto; Theo ten Brummelaar; Christophe Bailet; Philippe Berio; Yves Bresson; Frédéric Cassaing; Jean-Michel Clausse; Julien Dejonghe; Stéphane Lagarde; Marc-Antoine Martinod; Vincent Michau; Karine Perraut; Cyril Petit; Michel Tallon; Isabelle Tallon-Bosc

doi:10.1117/12.2311869

9 July 2018 SPICA, a new 6T visible beam combiner for CHARA: science, design and interfaces

Denis Mourard, Nicolas Nardetto, Theo ten Brummelaar, Christophe Bailet, Philippe Berio, Yves Bresson, Frédéric Cassaing, Jean-Michel Clausse, Julien Dejonghe, Stéphane Lagarde, Marc-Antoine Martinod, Vincent Michau, Karine Perraut, Cyril Petit, Michel Tallon, Isabelle Tallon-Bosc

Author Affiliations +

Proceedings Volume 10701, Optical and Infrared Interferometry and Imaging VI; 1070120 (2018) https://doi.org/10.1117/12.2311869
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

We present the recent developments preparing the construction of a new visible 6T beam combiner for the CHARA Array, called SPICA. This instrument is designed to achieve a large survey of stellar parameters and to image surface of stars. We first detail the science justification and the general idea governing the establishment of the sample of stars and the main guidance for the optimization of the observations. After a description of the concept of the instrument, we focus our attention on the first important aspect: optimizing and stabilizing the injection of light into single mode fibers in the visible under partial adaptive optics correction. Then we present the main requirements and the preliminary design of a 6T-ABCD integrated optics phase sensor in the H-band to achieve long exposures and reach fainter magnitudes in the visible.

Conference Presentation

Citation Download Citation

Denis Mourard, Nicolas Nardetto, Theo ten Brummelaar, Christophe Bailet, Philippe Berio, Yves Bresson, Frédéric Cassaing, Jean-Michel Clausse, Julien Dejonghe, Stéphane Lagarde, Marc-Antoine Martinod, Vincent Michau, Karine Perraut, Cyril Petit, Michel Tallon, and Isabelle Tallon-Bosc "SPICA, a new 6T visible beam combiner for CHARA: science, design and interfaces", Proc. SPIE 10701, Optical and Infrared Interferometry and Imaging VI, 1070120 (9 July 2018); https://doi.org/10.1117/12.2311869

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