title: Bandwidth scaling of a phase-modulated continuous-wave comb through four-wave mixing in a silicon nano-waveguide.
abstract: We demonstrate an on-chip four-wave mixing (FWM) scheme in a silicon nanowaveguide to scale the bandwidth of a frequency comb generated by phase modulation of continuous-wave (CW) lasers. The FWM process doubles the bandwidth of the initial comb generated by the modulation of a CW laser. For example, a wavelength-tunable frequency comb with >100 comb lines spaced by 10 GHz within a bandwidth of 5 dB is generated.
authors.forename: Yang
authors.initials: Y
authors.lastname: Liu
authors.forename: Andrew J
authors.initials: AJ
authors.lastname: Metcalf
authors.forename: Victor Torres
authors.initials: VT
authors.lastname: Company
authors.forename: Rui
authors.initials: R
authors.lastname: Wu
authors.forename: Li
authors.initials: L
authors.lastname: Fan
authors.forename: Leo T
authors.initials: LT
authors.lastname: Varghese
authors.forename: Minghao
authors.initials: M
authors.lastname: Qi
authors.forename: Andrew M
authors.initials: AM
authors.lastname: Weiner