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Proceedings Paper

Fluoride fiber thermal emission study for SPIRou @ CFHT
Author(s): Yoan Micheau; Marc Bouyé; Jérôme Parisot; Driss Kouach
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Paper Abstract

SPIRou is a near-IR (0.98-2.35μm), echelle spectropolarimeter / high precision velocimeter being designed as a nextgeneration instrument for the 3.6m Canada-France-Hawaii Telescope on Mauna Kea, Hawaii, with the main goal of detecting Earth-like planets around low mass stars and magnetic fields of forming stars. The SPIRou science fibers, which connect the polarimeter unit to the cryogenic spectrograph unit (35 meter apart), emit an undesirable thermal flux into the spectrograph, due to their intrinsic absorption. This may degrade the signal to noise ratio and then the sensitivity of the instrument for the reddest wavelengths. For verifying the calculation model used to predict the thermal emission from the SPIRou science fibers, a test bench is set-up at LESIA (Observatory of Paris). In this paper, the experimental approach to measure the thermal emission from a 30 meter long fluoride fiber @3μm is described. Experimental results are then compared to those predicted by the theoretical model.

Paper Details

Date Published: 11 September 2015
PDF: 9 pages
Proc. SPIE 9605, Techniques and Instrumentation for Detection of Exoplanets VII, 96051Q (11 September 2015); doi: 10.1117/12.2185188
Show Author Affiliations
Yoan Micheau, Observatoire Midi-Pyrénées (France)
Marc Bouyé, Observatoire Midi-Pyrénées (France)
Jérôme Parisot, Lab. d'Etudes Spatiales et d'Instrumentation en Astrophysique (France)
Driss Kouach, Observatoire Midi-Pyrénées (France)

Published in SPIE Proceedings Vol. 9605:
Techniques and Instrumentation for Detection of Exoplanets VII
Stuart Shaklan, Editor(s)

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