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dc.contributor.authorButler, S. M.
dc.contributor.authorBakoz, A. P.
dc.contributor.authorSingaravelu, P. K.J.
dc.contributor.authorLiles, A. A.
dc.contributor.authorO’Shaughnessy, B.
dc.contributor.authorViktorov, E. A.
dc.contributor.authorO’Faolain, L.
dc.contributor.authorHegarty, S. P.
dc.identifier.citationButler , S M , Bakoz , A P , Singaravelu , P K J , Liles , A A , O’Shaughnessy , B , Viktorov , E A , O’Faolain , L & Hegarty , S P 2019 , ' Frequency modulated hybrid photonic crystal laser by thermal tuning ' , Optics Express , vol. 27 , no. 8 , pp. 11312-11322 .
dc.descriptionFunding: Science Foundation Ireland (SFI 12/RC/2276, SFI 16/ERCS/3838); Engineering and Physical Sciences Research Council (EPSRC) (doctoral grant EP/L505079/1); H2020 European Research Council (ERC) (starting grant 337508); Scottish Enterprise; Cork Institute of Technology (CIT) (Rísam); Irish Government’s Programme for Research in Third Level Institutions, Cycle 5, Strand 1a (CREATE).en
dc.description.abstractWe demonstrate frequency modulation (FM) in an external cavity (EC) III-V/silicon laser, comprising a reflective semiconductor optical amplifier (RSOA) and a silicon nitride (SiN) waveguide vertically coupled to a 2D silicon photonic crystal (PhC) cavity. The PhC cavity acts as a tunable narrowband reflector giving wavelength selectivity. The FM was achieved by thermo-optical modulation of the reflector via a p-n junction. Single-mode operation was ensured by the short cavity length, overlapping only one longitudinal laser mode with the reflector. We investigate the effect of reflector modulation theoretically and experimentally and predict a substantial tracking of the resonator by the laser frequency with very small intensity modulation (IM).
dc.relation.ispartofOptics Expressen
dc.subjectQC Physicsen
dc.subjectAtomic and Molecular Physics, and Opticsen
dc.titleFrequency modulated hybrid photonic crystal laser by thermal tuningen
dc.typeJournal articleen
dc.contributor.sponsorEuropean Research Councilen
dc.contributor.institutionUniversity of St Andrews. Microphotonics and Photonic Crystals Groupen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.description.statusPeer revieweden
dc.identifier.grantnumber337508 337508en

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