title: Supercontinuum generation in silicon waveguides relying on wave-breaking.
abstract: Four-wave-mixing processes enabled during optical wave-breaking (OWB) are exploited in this paper for supercontinuum generation. Unlike conventional approaches based on OWB, phase-matching is achieved here for these nonlinear interactions, and, consequently, new frequency production becomes more efficient. We take advantage of this kind of pulse propagation to obtain numerically a coherent octave-spanning mid-infrared supercontinuum generation in a silicon waveguide pumping at telecom wavelengths in the normal dispersion regime. This scheme shows a feasible path to overcome limits imposed by two-photon absorption on spectral broadening in silicon waveguides.
authors.forename: David
authors.initials: D
authors.lastname: Castelló-Lurbe
authors.forename: Enrique
authors.initials: E
authors.lastname: Silvestre