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Dispersion trimming for mid-infrared supercontinuum generation in a hybrid chalcogenide/silicon-germanium waveguide

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


We report a simple post-process technique that harnesses a hybrid chalcogenide/silicon-germanium system for the control of waveguide dispersion. By adding a chalcogenide top cladding to a SiGe/Si waveguide, we can substantially change the dispersive properties, which underpin the generation of a supercontinuum. In our particular example, we experimentally show that a shift from anomalous to normal dispersion takes place. We numerically study the dispersion dependence on the chalcogenide...[Show more]

CollectionsANU Research Publications
Date published: 2019-01-08
Type: Journal article
Source: Journal of the Optical Society of America B
DOI: 10.1364/JOSAB.36.000A98
Access Rights: Open Access


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