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Bright octave-span mid-IR supercontinuum generation in silicon germanium waveguide

Della Torre, Alberto; Sinobad, M.; Luther-Davies, Barry; Ma, Pan; Madden, Steve; Debbarma, Sukhanta; Vu, Khu; Moss, David J.; Mitchell, Arnan; Hartmann, Jean-Michel; Fedeli, Jean-Marc; Monat, C.; Grillet, C.


We present silicon-germanium on silicon waveguides as a suitable platform for on-chip supercontinuum generation in the mid-infrared. We report low propagation loss (<0.4dB/cm) in the 3.5-5 μm range, leading to an octave spanning supercontinuum extending up to 8.5 μm with a high average power of more than 10 mW on-chip. Furthermore, we present the addition of a chalcogenide cladding layer as a simple post-processing technique to fine tune the waveguide dispersion which, in turn, governs the...[Show more]

CollectionsANU Research Publications
Date published: 2019
Type: Conference paper
Source: Proceedings of SPIE - The International Society for Optical Engineering
DOI: 10.1117/12.2517866
Access Rights: Open Access


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