@inproceedings{977ce2f946224ea3b18448da888ea865,
title = "Advances in broadband-integrated optic beam combiners for mid-IR astronomical interferometers",
abstract = "Photonic technology has pushed the limits of astronomy ever more in recent years. Especially, integrated optics (IO) has led to new standards in accuracy and stability in the eld of astronomical interferometry where several beams need to be coherently and simultaneously combined. We follow and extend the IO concept by writing mid-IR waveguides in gallium lanthanum sul de (GLS) using Ultrafast Laser Writing (ULI). Here, we report on the monochromatic and broadband interferometric capabilities in the mid-IR of such combiners. Finally, we outline the way to a ber-fed IO 4-telescope instrument for next-generation astronomical interferometers.",
keywords = "Beam combination, Infrared, Integrated optics, Interferometry, Laser writing",
author = "Jan Tepper and Romina Diener and Lucas Labadie and Stefano Minardi and Thomson, {Robert R.} and Stefan Nolte",
year = "2017",
month = apr,
day = "7",
doi = "10.1117/12.2249986",
language = "English",
volume = "10110",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Soskind, {Yakov G. } and Craig Olson",
booktitle = "Proceedings of the SPIE",
address = "United States",
note = "Photonic Instrumentation Engineering IV ; Conference date: 31-01-2017 Through 02-02-2017",
}