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dc.contributor.authorLee, Benjamin G.
dc.contributor.authorBelkin, Mikhail A.
dc.contributor.authorPflügl, Christian
dc.contributor.authorDiehl, Laurent
dc.contributor.authorZhang, Haifei
dc.contributor.authorAudet, Ross M.
dc.contributor.authorMacArthur, Jim B.
dc.contributor.authorBour, David P.
dc.contributor.authorCorzine, Scott W.
dc.contributor.authorHöfler, Gloria E.
dc.contributor.authorCapasso, Federico
dc.date.accessioned2009-12-21T16:21:05Z
dc.date.issued2009
dc.identifier.citationLee, Benjamin G., Mikhail A. Belkin, Christian Pflügl, Laurent Diehl, Haifei A. Zhang, Ross M. Audet, Jim MacArthur, David P. Bour, Scott W. Corzine, Gloria E. Hofler, Federico Capasso. 2009. DFB quantum cascade laser arrays. IEEE Journal of Quantum Electronics 45(5): 554-565.en_US
dc.identifier.issn0018-9197en_US
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:3445981
dc.description.abstractDFB quantum cascade laser (DFB-QCL) arrays operating between 8.7 and 9.4 mum are investigated for their performance characteristics-single-mode selection of the DFB grating, and variability in threshold, slope efficiency, and output power of different lasers in the array. Single-mode selection refers to the ability to choose a desired mode/frequency of laser emission with a DFB grating. We apply a theoretical framework developed for general DFB gratings to analyze DFB-QCL arrays. We calculate how the performance characteristics of DFB-QCLs are affected by the coupling strength kappaL of the grating, and the relative position of the mirror facets at the ends of the laser cavity with respect to the grating. We discuss how single-mode selection can be improved by design. Several DFB-QCL arrays are fabricated and their performance examined. We achieve desired improvements in single-mode selection, and we observe the predicted variability in the threshold, slope efficiency, and output power of the DFB-QCLs. As a demonstration of potential applications, the DFB-QCL arrays are used to perform infrared absorption spectroscopy with fluids.en_US
dc.description.sponsorshipEngineering and Applied Sciencesen_US
dc.language.isoen_USen_US
dc.publisherInstitute of Electrical and Electronics Engineersen_US
dc.relation.isversionofdoi:10.1109/JQE.2009.2013175en_US
dc.relation.hasversionhttp://hutrough.harvard.edu/capasso/publications/Lee_IEEE_JQE_45_554_2009.pdfen_US
dash.licenseLAA
dc.titleDFB Quantum Cascade Laser Arraysen_US
dc.typeJournal Articleen_US
dc.description.versionVersion of Recorden_US
dc.relation.journalIEEE Journal of Quantum Electronicsen_US
dash.depositing.authorCapasso, Federico
dc.date.available2009-12-21T16:21:05Z
dc.identifier.doi10.1109/JQE.2009.2013175*
dash.authorsorderedfalse
dash.contributor.affiliatedMacArthur, James
dash.contributor.affiliatedZhang, Haifei
dash.contributor.affiliatedDiehl, L
dash.contributor.affiliatedCapasso, Federico


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