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Journal Articles Monthly Notices of the Royal Astronomical Society Year : 2018

Multichannel spectral mode of the ALOHA up-conversion interferometer

Abstract

In this paper, we propose a multichannel spectral configuration of the Astronomical Light Optical Hybrid Analysis (ALOHA) instrument dedicated to high resolution imaging. A frequency conversion process is implemented in each arm of an interferometer to transfer the astronomical light to a shorter wavelength domain. Exploiting the spectral selectivity of this non-linear optical process, we propose to use a set of independent pump lasers in order to simultaneously study multiple spectral channels. This principle is experimentally demonstrated with a dual-channel configuration as a proof-of-principle.
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Dates and versions

hal-02093501 , version 1 (09-04-2019)

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Lucien Lehmann, Pascaline Darré, Hervé Boulogne, Laurent Delage, Ludovic Grossard, et al.. Multichannel spectral mode of the ALOHA up-conversion interferometer. Monthly Notices of the Royal Astronomical Society, 2018, 477 (1), pp.190-194. ⟨10.1093/mnras/sty648⟩. ⟨hal-02093501⟩
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