Fluoride fiber thermal emission study for SPIRou @ CFHT

Yoan Micheau; Marc Bouyé; Jérôme Parisot; Driss Kouach

doi:10.1117/12.2185188

11 September 2015 Fluoride fiber thermal emission study for SPIRou @ CFHT

Yoan Micheau, Marc Bouyé, Jérôme Parisot, Driss Kouach

Proceedings Volume 9605, Techniques and Instrumentation for Detection of Exoplanets VII; 96051Q (2015) https://doi.org/10.1117/12.2185188
Event: SPIE Optical Engineering + Applications, 2015, San Diego, California, United States

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.

Citation Download Citation

Yoan Micheau, Marc Bouyé, Jérôme Parisot, and Driss Kouach "Fluoride fiber thermal emission study for SPIRou @ CFHT", Proc. SPIE 9605, Techniques and Instrumentation for Detection of Exoplanets VII, 96051Q (11 September 2015); https://doi.org/10.1117/12.2185188

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available