Experimental demonstration of mid-IR Octave spanning supercontinuum generation in low loss silicon- germanium waveguide

We report supercontinuum extending from 3 to 6μm generated in Si0.6Ge0.4/Si waveguide pumping with ~200fs pulses at 4.15μm. Experimentally measured low propagation loss (0.4dB/cm in range 3.8-5.0μm) and dispersion engineering waveguide allowed us achieving ~5mW useful average power