Spectral Analysis of Quantum-Dash Lasers: Effect of Inhomogeneous Broadening of the Active-Gain Region

Handle URI:
http://hdl.handle.net/10754/312986
Title:
Spectral Analysis of Quantum-Dash Lasers: Effect of Inhomogeneous Broadening of the Active-Gain Region
Authors:
Khan, Mohammed Zahed Mustafa ( 0000-0002-9734-5413 ) ; Ng, Tien Khee ( 0000-0002-1480-6975 ) ; Ooi, Boon S. ( 0000-0001-9606-5578 ) ; Schwingenschlögl, Udo ( 0000-0003-4179-7231 )
Abstract:
The effect of the active region inhomogeneity on the spectral characteristics of InAs/InP quantum-dash (Qdash) lasers is examined theoretically by solving the coupled set of carrier-photon rate equations. The inhomogeneity due to dash size or composition fluctuation is included in the model by considering dispersive energy states and characterized by a Gaussian envelope. In addition, the technique incorporates multilongitudinal photon modes and homogeneous broadening of the optical gain. The results predict a red shift in the central lasing wavelength of Qdash lasers on increasing the inhomogeneous broadening either explicitly or implicitly, which supports various experimental observations. The threshold current density and the lasing bandwidth are also found to increase. © 2012 IEEE.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Photonics Laboratory
Citation:
Khan MZM, Ng TK, Schwingenschlogl U, Ooi BS (2012) Spectral Analysis of Quantum-Dash Lasers: Effect of Inhomogeneous Broadening of the Active-Gain Region. IEEE Journal of Quantum Electronics 48: 608-615. doi:10.1109/JQE.2012.2188852.
Publisher:
IEEE
Journal:
IEEE Journal of Quantum Electronics
Issue Date:
May-2012
DOI:
10.1109/JQE.2012.2188852
Type:
Article
ISSN:
0018-9197; 1558-1713
Additional Links:
http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=6157595
Appears in Collections:
Articles; Photonics Laboratory; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorKhan, Mohammed Zahed Mustafaen
dc.contributor.authorNg, Tien Kheeen
dc.contributor.authorOoi, Boon S.en
dc.contributor.authorSchwingenschlögl, Udoen
dc.date.accessioned2014-02-17T04:53:10Z-
dc.date.available2014-02-17T04:53:10Z-
dc.date.issued2012-05en
dc.identifier.citationKhan MZM, Ng TK, Schwingenschlogl U, Ooi BS (2012) Spectral Analysis of Quantum-Dash Lasers: Effect of Inhomogeneous Broadening of the Active-Gain Region. IEEE Journal of Quantum Electronics 48: 608-615. doi:10.1109/JQE.2012.2188852.en
dc.identifier.issn0018-9197en
dc.identifier.issn1558-1713en
dc.identifier.doi10.1109/JQE.2012.2188852en
dc.identifier.urihttp://hdl.handle.net/10754/312986en
dc.description.abstractThe effect of the active region inhomogeneity on the spectral characteristics of InAs/InP quantum-dash (Qdash) lasers is examined theoretically by solving the coupled set of carrier-photon rate equations. The inhomogeneity due to dash size or composition fluctuation is included in the model by considering dispersive energy states and characterized by a Gaussian envelope. In addition, the technique incorporates multilongitudinal photon modes and homogeneous broadening of the optical gain. The results predict a red shift in the central lasing wavelength of Qdash lasers on increasing the inhomogeneous broadening either explicitly or implicitly, which supports various experimental observations. The threshold current density and the lasing bandwidth are also found to increase. © 2012 IEEE.en
dc.language.isoenen
dc.publisherIEEEen
dc.relation.urlhttp://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=6157595en
dc.rightsArchived with thanks to IEEE Journal of Quantum Electronicsen
dc.titleSpectral Analysis of Quantum-Dash Lasers: Effect of Inhomogeneous Broadening of the Active-Gain Regionen
dc.typeArticleen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentPhotonics Laboratoryen
dc.identifier.journalIEEE Journal of Quantum Electronicsen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionDepartment of Electrical Engineering and Computer Science, University of Michigan, 1301, Beal Avenue, Ann Arbor, MI 48109-2122, United Statesen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorKhan, Mohammed Zahed Mustafaen
kaust.authorNg, Tien Kheeen
kaust.authorSchwingenschlögl, Udoen
kaust.authorOoi, Boon S.en
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.