Torre, Alberto DellaSinobad, MilanArmand, RémiLuther-Davies, BarryMa, PanMadden, StephenDebbarma, SukantaVu, KhuMoss, David J.Mitchell, ArnanHartmann, Jean MichelFedeli, Jean MarcMonat, ChristelleGrillet, Christian2025-06-292025-06-2997815106314030277-786XORCID:/0000-0002-2747-5036/work/161269544ORCID:/0000-0003-3146-285X/work/162866009http://www.scopus.com/inward/record.url?scp=85079600502&partnerID=8YFLogxKhttps://hdl.handle.net/1885/733765314We report mid-infrared supercontinuum generation in a silicon germanium-on-silicon waveguide. We show that, by adding a chalcogenide cladding, it is possible to trim a posteriori the waveguide's dispersion profile which, in turn, governs the properties of the generated supercontinuum. In particular, we experimentally show that a shift from anomalous to normal dispersion takes place when a 1.26 μm thick cladding layer of Ge11.5As24Se64.5 is added. Finally, we show that the group velocity dispersion of the waveguide can be precisely controlled by changing the thickness of the cladding layer.enPublisher Copyright: © COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.Dispersion trimmingIntegrated opticsMid-infraredNonlinear opticsSupercontinuum generation201910.1117/12.253991385079600502