Limitations on standard procedure of determining internal loss and efficiency in quantum dot lasers

dc.contributorVirginia Tech. Department of Materials Science and Engineeringen
dc.contributor.authorAsryan, Levon V.en
dc.contributor.departmentMaterials Science and Engineering (MSE)en
dc.date.accessed2015-04-24en
dc.date.accessioned2015-05-21T19:47:25Zen
dc.date.available2015-05-21T19:47:25Zen
dc.date.issued2006-01-01en
dc.description.abstractLimitations are discussed on the use in quantum dot (QD) lasers of the conventional method of determining internal loss coefficient alpha(int) and internal quantum efficiency eta(int) from a measured plot of the reciprocal slope efficiency versus the cavity length L. The limitations are imposed by the L-dependence of alpha(int) and eta(int) themselves. The effect of internal loss is quantitatively analyzed, which originates from the dependence of alpha(int) on the carrier density, with the latter being L-dependent. In short cavities, a plot of the reciprocal slope efficiency versus L can significantly deviate from a straight line, thus limiting the practicality of the standard procedure. For L longer than several hundred mu m, the limitations are strong in a single-QD-layer laser and moderate in a multiple-QD-layer laser. (c) 2006 American Institute of Physics.en
dc.description.sponsorshipUnited States. Army Research Office - Grant No. W911-NF-05-1-0308en
dc.format.extent5 pagesen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationAsryan, L. V. (2006). Limitations on standard procedure of determining internal loss and efficiency in quantum dot lasers. Journal of Applied Physics, 99(1). doi: 10.1063/1.2159072en
dc.identifier.doihttps://doi.org/10.1063/1.2159072en
dc.identifier.issn0021-8979en
dc.identifier.urihttp://hdl.handle.net/10919/52436en
dc.identifier.urlhttp://scitation.aip.org/content/aip/journal/jap/99/1/10.1063/1.2159072en
dc.language.isoen_USen
dc.publisherAmerican Institute of Physicsen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectQuantum dotsen
dc.subjectQuantum wellsen
dc.subjectCarrier densityen
dc.subjectLaser resonatorsen
dc.subjectCharge injectionen
dc.titleLimitations on standard procedure of determining internal loss and efficiency in quantum dot lasersen
dc.title.serialJournal of Applied Physicsen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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