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dc.contributor.authorWeih, Robert
dc.contributor.authorScheuermann, Julian
dc.contributor.authorKamp, Martin
dc.contributor.authorKoeth, Johannes
dc.contributor.authorHöfling, Sven
dc.identifier.citationWeih , R , Scheuermann , J , Kamp , M , Koeth , J & Höfling , S 2018 , ' Double-waveguide interband cascade laser with dual wavelength emission ' , Applied Physics Letters , vol. 113 , no. 25 , 251105 .
dc.identifier.otherPURE: 256865951
dc.identifier.otherPURE UUID: df824f34-bc79-4e70-8ac7-8a1bd3fdaced
dc.identifier.otherScopus: 85058875630
dc.identifier.otherWOS: 000454216900005
dc.descriptionWe are grateful for receiving financial support within the BMBF Project “LASELO” (FKZ: 13N13773).en
dc.description.abstractInterband cascade lasers (ICLs) with dual wavelength emission have been realized by utilizing two spatially separated active regions in the same device. The two wavelengths (3.1 and 3.7 µm) were chosen in order to demonstrate that the usual spectral gain bandwidth of an ICL can be overcome. At 20°C, threshold current densities as low as 215 A/cm² (short wavelength) and 158 A/cm² (long wavelength) could be achieved in pulsed mode. It was possible for an epi-up mounted device to maintain dual-wavelength continuous-wave emission up to 0°C. Despite the longer wavelength emission being suppressed at higher temperatures, the shorter wavelength maintained an output power of more than 10 mW at 15°C.
dc.relation.ispartofApplied Physics Lettersen
dc.rightsCopyright © 2018, the Author(s). This work has been made available online in accordance with the publisher's policies. This is the author created accepted version manuscript following peer review and as such may differ slightly from the final published version. The final published version of this work is available at
dc.subjectQC Physicsen
dc.subjectT Technologyen
dc.titleDouble-waveguide interband cascade laser with dual wavelength emissionen
dc.typeJournal articleen
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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