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dc.contributor.authorChen, Huan
dc.contributor.authorAuchter, Silke
dc.contributor.authorPrilmüller, Maximilian
dc.contributor.authorSchlager, Alexander
dc.contributor.authorKauten, Thomas
dc.contributor.authorLaiho, Kaisa
dc.contributor.authorPressl, Benedikt
dc.contributor.authorSuchomel, Holger
dc.contributor.authorKamp, Martin
dc.contributor.authorHöfling, Sven
dc.contributor.authorSchneider, Christian
dc.contributor.authorWeihs, Gregor
dc.identifier.citationChen , H , Auchter , S , Prilmüller , M , Schlager , A , Kauten , T , Laiho , K , Pressl , B , Suchomel , H , Kamp , M , Höfling , S , Schneider , C & Weihs , G 2018 , ' Time-bin entangled photon pairs from Bragg-reflection waveguides ' , APL Photonics , vol. 3 , no. 8 , 080804 .
dc.identifier.otherPURE: 254468907
dc.identifier.otherPURE UUID: 545ea015-fa8c-41c5-8477-00e150cbecd5
dc.identifier.otherScopus: 85055404192
dc.identifier.otherWOS: 000442616200004
dc.descriptionThis work was supported by the Austrian Science Fund (FWF) through the project nos. I 2065 and J 4125, the DFG project no. SCHN1376/2-1, the ERC project EnSeNa (257531), the State of Bavaria and China Scholarship Council (201503170272).en
dc.description.abstractSemiconductor Bragg-reflection waveguides are well-established sources of correlated photon pairs as well as promising candidates for building up integrated quantum optics devices. Here, we use such a source with optimized non-linearity for preparing time-bin entangled photons in the telecommunication wavelength range. By taking advantage of pulsed state preparation and efficient free-running single-photon detection, we drive our source at low pump powers, which results in a strong photon-pair correlation. The tomographic reconstruction of the state’s density matrix reveals that our source exhibits a high degree of entanglement. We extract a concurrence of 88.9(1.8)% and a fidelity of 94.2(9)% with respect to a Bell state.
dc.relation.ispartofAPL Photonicsen
dc.rights© 2018 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (
dc.subjectTime-bin entanglementen
dc.subjectQuantum state tomographyen
dc.subjectParametric down-conversionen
dc.subjectBragg-reflection waveguideen
dc.subjectQC Physicsen
dc.subjectTK Electrical engineering. Electronics Nuclear engineeringen
dc.titleTime-bin entangled photon pairs from Bragg-reflection waveguidesen
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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