Della Torre, AlbertoSinobad, MArmand, RemiLuther-Davies, BarryMa, PanMadden, SteveDebbarma, SukantaVu, KHUTRIMoss, David JMitchell, ArnanHartmann, Jean-MichelFedeli, Jean-MarcMonat, ChristelleGrillet, CMitchell, ArnanRubinsztein-Dunlop, Halina2023-07-182023-07-189-12 Decem97815106314030277-786Xhttp://hdl.handle.net/1885/294387We 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.application/pdfen-AU© 2019 SPIESupercontinuum generationnonlinear opticsintegrated opticsmid-infrareddispersion trimming201910.1117/12.25399132022-05-15