Sinobad, M.Monat, C.Luther-Davies, BarryMa, PanMadden, SteveMoss, David J.Mitchell, ArnanAllioux, DavidOrobtchouk, RegisBoutami, SalimHartmann, Jean-MichelFedeli, Jean-MarcGrillet, C.2020-01-242020-01-242334-2536http://hdl.handle.net/1885/199742Efficient on-chip molecule and bio-agent detection can be achieved by accessing strong molecular absorption lines in the mid-infrared, but it requires high output power broadband mid-IR sources. Here, we report supercontinuum generation in an air-clad Si0.6Ge0.4/Si waveguide that emits a broad spectrum spanning from 3.0 μm to 8.5 μm. These waveguides have anomalous dispersion and low propagation loss (<0.4  dB/cm) in the mid-IR, which leads to a supercontinuum output with a high average power of more than 10 mW on-chip. The realization of broadband mid-IR sources with high spectral brightness makes the SiGe-on-Si platform promising for a wide range of applications.H2020 Marie Skłodowska-Curie Actions (MSCA) (631543); H2020 European Research Council (ERC) (GRAPHICS, 648546); Australian Research Council (ARC) (150104327, CE1101018); Agence Nationale de la Recherche (ANR) (MIRSICOMB, ANR-17-CE24-0028).application/pdfen-AU© 2018 Optical Society of America2018-03-2710.1364/OPTICA.5.0003602019-11-25OSA Open Access Publishing Agreement