title: Self-locked optical parametric oscillation in a CMOS compatible microring resonator: a route to robust optical frequency comb generation on a chip.
abstract: We report a novel geometry for OPOs based on nonlinear microcavity resonators. This approach relies on a self-locked scheme that enables OPO emission without the need for thermal locking of the pump laser to the microcavity resonance. By exploiting a CMOS-compatible microring resonator, we achieve oscillation featured by a complete absence of "shutting down", i.e. the self-terminating behavior that is a very common and detrimental occurrence in externally pumped OPOs. Further, our scheme consistently produces very wide bandwidth (>300nm, limited by our experimental set-up) combs that oscillate at a spacing equal to the FSR of the micro cavity resonance.
authors.affiliation: INRS-Énergie, Matériaux et Télécommunications, Varennes, Québec, Canada.
authors.forename: Alessia
authors.initials: A
authors.lastname: Pasquazi
authors.forename: Lucia
authors.initials: L
authors.lastname: Caspani
authors.forename: Marco
authors.initials: M
authors.lastname: Peccianti
authors.forename: Matteo
authors.initials: M
authors.lastname: Clerici
authors.forename: Marcello
authors.initials: M
authors.lastname: Ferrera
authors.forename: Luca
authors.initials: L
authors.lastname: Razzari
authors.forename: David
authors.initials: D
authors.lastname: Duchesne
authors.forename: Brent E
authors.initials: BE
authors.lastname: Little
authors.forename: Sai T
authors.initials: ST
authors.lastname: Chu
authors.forename: David J
authors.initials: DJ
authors.lastname: Moss
authors.forename: Roberto
authors.initials: R
authors.lastname: Morandotti