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.
Original language | English |
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Pages (from-to) | 13333-13341 |
Number of pages | 9 |
Journal | Optics Express |
Volume | 21 |
Issue number | 11 |
DOIs | |
Publication status | Published - 3 Jun 2013 |
Keywords
- cavity resonators
- optical resonators
- CMOS compatible
- microcavity resonator
- optical frequency comb generation
- optical para,etric oscillations
- pump laser
- thermal locking
- wide bandwidth