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dc.contributor.authorReinhold, A.
dc.contributor.authorFischer, M.
dc.contributor.authorZeller, W.
dc.contributor.authorKoeth, J.
dc.contributor.authorHöfling, S.
dc.contributor.authorKamp, M.
dc.date.accessioned2019-11-14T14:30:04Z
dc.date.available2019-11-14T14:30:04Z
dc.date.issued2019-08-15
dc.identifier.citationReinhold , A , Fischer , M , Zeller , W , Koeth , J , Höfling , S & Kamp , M 2019 , ' Evanescently coupled DBR laser arrays in the 760–770 nm wavelength range ' , IEEE Photonics Technology Letters , vol. 31 , no. 16 , pp. 1319-1322 . https://doi.org/10.1109/LPT.2019.2925542en
dc.identifier.issn1041-1135
dc.identifier.otherPURE: 260859081
dc.identifier.otherPURE UUID: f89ca41a-ee80-488e-a692-1ca45fa1fac6
dc.identifier.otherRIS: urn:5D598DB36E137CD0DE9D8F0B535C6775
dc.identifier.otherScopus: 85069790552
dc.identifier.otherWOS: 000476811600003
dc.identifier.urihttps://hdl.handle.net/10023/18923
dc.description.abstractIn this letter, we present evanescently coupled semiconductor laser arrays designed with a distributed Bragg reflector section for spectrally narrow emission and a combined waveguide section for high optical output powers. These devices were designed and fabricated in the AlGaAs material system with an InGaAsP quantum well providing emission in the 760–770 nm wavelength range. Measurements of the light-current characteristics reveal high optical output powers of 600 mW at 20 °C and 700 mW at 5 °C limited by thermal rollover without any signs of a catastrophic optical mirror damage or rapid power degradation. Spectrally narrow emission of 0.2 nm at −3 dB and a high wavelength stability with a small current tuning coefficient of 0.7 pm/mA were found. Far-field investigations reveal pre-dominant coupling of lowest order in-phase supermode emission without any sections for adjusting the phase of the electrical field vector for adjacent elements.
dc.format.extent4
dc.language.isoeng
dc.relation.ispartofIEEE Photonics Technology Lettersen
dc.rightsCopyright © 2019 IEEE. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the author created accepted manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1109/LPT.2019.2925542en
dc.subjectDistributed Bragg reflectorsen
dc.subjectOptical reflectionen
dc.subjectOptical waveguidesen
dc.subjectPower generationen
dc.subjectOptical variables measurementen
dc.subjectStimulated emissionen
dc.subjectPower amplifiersen
dc.subjectQC Physicsen
dc.subjectTK Electrical engineering. Electronics Nuclear engineeringen
dc.subjectNDASen
dc.subject.lccQCen
dc.subject.lccTKen
dc.titleEvanescently coupled DBR laser arrays in the 760–770 nm wavelength rangeen
dc.typeJournal articleen
dc.description.versionPostprinten
dc.contributor.institutionUniversity of St Andrews. Condensed Matter Physicsen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.identifier.doihttps://doi.org/10.1109/LPT.2019.2925542
dc.description.statusPeer revieweden


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