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dc.contributor.authorHolzinger, Steffen
dc.contributor.authorSchneider, Christian
dc.contributor.authorHöfling, Sven
dc.contributor.authorPorte, Xavier
dc.contributor.authorReitzenstein, Stephan
dc.identifier.citationHolzinger , S , Schneider , C , Höfling , S , Porte , X & Reitzenstein , S 2019 , ' Quantum-dot micropillar lasers subject to coherent time-delayed optical feedback from a short external cavity ' , Scientific Reports , vol. 9 , 631 .
dc.identifier.otherPURE: 256705815
dc.identifier.otherPURE UUID: c6ad49ba-0012-429c-994f-5d5120d5173b
dc.identifier.otherScopus: 85060529011
dc.identifier.otherWOS: 000456554600070
dc.descriptionThe research leading to these results has received funding from the European Research Council under the European Union’s Seventh Framework ERC Grant Agreement No. 615613 and from the German Research Foundation via CRC 787.en
dc.description.abstractWe investigate the mode-switching dynamics of an electrically driven bimodal quantum-dot micropillar laser when subject to delayed coherent optical feedback from a short external cavity. We experimentally characterize how the external cavity length, being on the same order than the microlaser’s coherence length, influences the spectral and dynamical properties of the micropillar laser. Moreover, we determine the relaxation oscillation frequency of the micropillar by superimposing optical pulse injection to a dc current. It is found that the optical pulse can be used to disturb the feedback-coupled laser within one roundtrip time in such a way that it reaches the same output power as if no feedback was present. Our results do not only expand the understanding of microlasers when subject to optical feedback from short external cavities, but pave the way towards tailoring the properties of this key nanophotonic system for studies in the quantum regime of self-feedback and its implementation to integrated photonic circuits.
dc.relation.ispartofScientific Reportsen
dc.rightsCopyright the Authors 2019. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit
dc.subjectNanophotonics and plasmonicsen
dc.subjectPhotonic devicesen
dc.subjectQuantum dotsen
dc.subjectSemiconductor lasersen
dc.subjectQC Physicsen
dc.subjectT Technologyen
dc.titleQuantum-dot micropillar lasers subject to coherent time-delayed optical feedback from a short external cavityen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews.Condensed Matter Physicsen
dc.contributor.institutionUniversity of St Andrews.School of Physics and Astronomyen
dc.description.statusPeer revieweden

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