Self-locked optical parametric oscillation in a CMOS compatible microring resonator: a route to robust optical frequency comb generation on a chip

Alessia Pasquazi, Lucia Caspani, Marco Peccianti, Matteo Clerici, Marcello Ferrera, Luca Razzari, David Duchesne, Brent E. Little, Sai T Chu, David J Moss, Roberto Morandotti

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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. (C) 2013 Optical Society of America

Original languageEnglish
Pages (from-to)13333-13341
Number of pages9
JournalOptics Express
Volume21
Issue number11
DOIs
Publication statusPublished - 3 Jun 2013

Keywords

  • RING-RESONATOR
  • MICRORESONATOR
  • MODE
  • SOLITONS
  • MICROCAVITY
  • COHERENCE
  • METROLOGY
  • LASERS
  • NOISE

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