Nano-photonic Supercontinuum Based Mid-Infrared Dual-Comb Spectroscopy

We demonstrate an approach to dual-comb spectroscopy, based on dispersion engineered and ultra-broadband supercontinuum generation in photonic integrated nonlinear waveguides, and driven by low-noise fiber-laser combs. Both technologies arc statc-of-the-art and contribute to high-performance mid-infrared spectroscopy.