title: Mid-infrared soliton and Raman frequency comb generation in silicon microrings.
abstract: We numerically study the mechanisms of frequency comb generation in the mid-infrared spectral region from cw-pumped silicon microring resonators. Coherent soliton comb generation may be obtained even for a pump with zero linear cavity detuning, through suitable control of the effective lifetime of free carriers from multiphoton absorption, which introduces a nonlinear cavity detuning via free-carrier dispersion. Conditions for optimal octave spanning Raman comb generation are also described.
authors.forename: Tobias
authors.initials: T
authors.lastname: Hansson
authors.forename: Daniele
authors.initials: D
authors.lastname: Modotto
authors.forename: Stefan
authors.initials: S
authors.lastname: Wabnitz