Show simple item record

dc.contributor.authorTzenov, Petar
dc.contributor.authorJirauschek, Christian
dc.contributor.authorBurghoff, David Patrick
dc.contributor.authorHu, Qing
dc.date.accessioned2018-02-14T20:16:48Z
dc.date.available2018-02-14T20:16:48Z
dc.date.issued2016-09
dc.identifier.urihttp://hdl.handle.net/1721.1/113671
dc.description.abstractDue to their broad spectral bandwidth and superior temperature performance, resonant phonon quantum cascade laser (QCL) designs have become the active-region of choice for many of the leading groups in terahertz (THz) QCL research. These gain media can vary substantially in the number of wells and barriers as well as their corresponding thicknesses, but all such structures employ a common resonant phonon lower laser level depopulation scheme and a resonant tunneling mechanism for efficient current injection into the upper laser level. The presence of a strong anticrossing between the injector and upper laser level leads, under the right conditions, to a pronounced splitting of the emission spectra into high and low frequency lobe components around some central transition frequency. This spectral hole burning effect also manifests itself in the time domain as a form of pulse switching between signals corresponding to the two lobes of the split gain, as it has already been experimentally observed. This process was termed as a form of temporal hole burning (THB), which next to spectral and spatial hole burning, completes the plethora of dynamic "hole burning" phenomena encountered in QCLs. In this work, we investigate the temporal dynamics of THz QCLs with a strong injector anticrossing via numerical solution of the Maxwell-Bloch laser equations. Our simulation results show remarkable agreement with experiment and we further outline the development of a theoretical model which intuitively explains this effect.en_US
dc.language.isoen_US
dc.publisherSPIEen_US
dc.relation.isversionofhttp://dx.doi.org/10.1117/12.2262350en_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourceSPIEen_US
dc.titleTemporal dynamics of THz quantum cascade laser frequency combs with strong injector anticrossingen_US
dc.typeArticleen_US
dc.identifier.citationTzenov, Petar, et al. "Temporal Dynamics of THz Quantum Cascade Laser Frequency Combs with Strong Injector Anticrossing." 19th International Conference and School on Quantum Electronics: Laser Physics and Applications, 26-30 September, 2016, Sozopol, Bulgaria. Edited by Tanja Dreischuh et al., SPIE, 2017, p. 102260N. © 2017 SPIEen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Electrical Engineering and Computer Scienceen_US
dc.contributor.departmentMassachusetts Institute of Technology. Research Laboratory of Electronicsen_US
dc.contributor.mitauthorBurghoff, David Patrick
dc.contributor.mitauthorHu, Qing
dc.relation.journal19th International Conference and School on Quantum Electronics: Laser Physics and Applicationsen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/ConferencePaperen_US
eprint.statushttp://purl.org/eprint/status/NonPeerRevieweden_US
dspace.orderedauthorsTzenov, Petar; Burghoff, David; Hu, Qing; Jirauschek, Christianen_US
dspace.embargo.termsNen_US
dc.identifier.orcidhttps://orcid.org/0000-0001-5848-2389
dc.identifier.orcidhttps://orcid.org/0000-0003-1982-4053
mit.licensePUBLISHER_POLICYen_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record