@inproceedings{642875246c844647a87f620d7333590a,
title = "Ultrafast laser-inscribed waveguides in IG2 chalcogenide glass for mid-infrared photonics applications",
abstract = "We present the first demonstration of ultrafast laser-inscribed waveguides in IG2 chalcogenide glass and their coupling to a mid-infrared quantum cascade laser. The fabrication parameter space has been investigated, resulting in optimized single-mode waveguides that have estimated propagation losses of 1 dB/cm at 7.8 μm. Higher order mode propagation was also observed. The refractive index modification caused by ultrafast laser inscription has been empirically quantified by comparison with modeled waveguide parameters, resulting in Δn = 0.0097-0.0143 over the pulse energy range investigated. We will present these findings, alongside our initial investigation into waveguide bend losses, which prepare the building blocks towards mid-infrared evanescent field coupling and integrated sensing applications.",
keywords = "Chalcogenide, IG2, Mid-infrared., Ultrafast laser inscription, Waveguide",
author = "Butcher, {Helen L.} and MacLachlan, {David Guillaume} and David Lee and Thomson, {Robert R.} and Damien Weidmann",
year = "2018",
month = feb,
day = "23",
doi = "10.1117/12.2288333",
language = "English",
isbn = "9781510615557",
series = "Proceedings of SPIE",
publisher = "SPIE",
editor = "{Garc{\'i}a-Blanco }, {Sonia M.} and Pavel Cheben",
booktitle = "Integrated Optics",
address = "United States",
}