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dc.contributor.authorGünthner, T.
dc.contributor.authorPressl, B.
dc.contributor.authorLaiho, K.
dc.contributor.authorGeßler, J.
dc.contributor.authorHöfling, Sven
dc.contributor.authorKamp, M.
dc.contributor.authorSchneider, C.
dc.contributor.authorWeihs, G.
dc.identifier.citationGünthner , T , Pressl , B , Laiho , K , Geßler , J , Höfling , S , Kamp , M , Schneider , C & Weihs , G 2015 , ' Broadband indistinguishability from bright parametric downconversion in a semiconductor waveguide ' , Journal of Optics , vol. 17 , no. 12 , 125201 , pp. 1-9 .
dc.identifier.otherPURE: 240812568
dc.identifier.otherPURE UUID: 955d5e7e-35e5-4b63-851e-a299a30bbc58
dc.identifier.otherBibtex: urn:c4a0ba391b626fe2d50253935915c08a
dc.identifier.otherScopus: 84947996424
dc.identifier.otherWOS: 000366375700020
dc.descriptionThis work was supported in part by the ERC, project EnSeNa (257531) and by the FWF through project no. I-2065-N27.en
dc.description.abstractParametric downconversion (PDC) in semiconductor Bragg-reflection waveguides (BRW) is routinely exploited for photon-pair generation in the telecommunication range. Contrary to many conventional PDC sources, BRWs offer possibilities to create spectrally broadband but nevertheless indistinguishable photon pairs in orthogonal polarizations that simultaneously incorporate high frequency entanglement. We explore the characteristics of co-propagating twin beams created in a type-II ridge BRW. Our PDC source is bright and efficient, serving as a benchmark of its performance and justifies its exploitation for further use in quantum photonics. We then examine the coalescence of the twin beams and investigate the effect of their inevitable multi-photon contributions on the observed photon bunching. Our results show that BRWs have a great potential for producing broadband indistinguishable photon pairs as well as multi-photon states.
dc.relation.ispartofJournal of Opticsen
dc.rights© 2015 IOP Publishing Ltd. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.en
dc.subjectParametric downconversionen
dc.subjecttwin beamsen
dc.subjecttwo-photon quantum interferenceen
dc.subjectBragg-reflection waveguidesen
dc.subjectQC Physicsen
dc.titleBroadband indistinguishability from bright parametric downconversion in a semiconductor waveguideen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews.School of Physics and Astronomyen
dc.contributor.institutionUniversity of St Andrews.Condensed Matter Physicsen
dc.description.statusPeer revieweden

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