Mid-infrared supercontinuum generation in suspended silicon rib waveguides

Nonlinear wideband light generation in the midinfrared using silicon photonics circuits can be key for emerging applications in metrology and sensing. Here, we experimentally demonstrate mid-infrared supercontinuum generation expanding from 2.5 µm to 7 µm wavelength in silicon rib membranes fabricated with silicon-on-insulator technology.