Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/18013
Share/Export:
logo share SHARE logo core CORE BASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Title

Spatio-temporal modeling of the optical properties of VCSELs in presence of polarization effects

AuthorsMulet, Josep; Balle, Salvador CSIC ORCID
Keywordsvcsel
Laser modes
Modeling
Surface-emitting lasers.
Issue DateMar-2002
PublisherInstitute of Electrical and Electronics Engineers
CitationIEEE Journal of Quantum Electronics 38, 291-305 (2002)
AbstractWe develop an optical dynamical model for vertical-cavity surface-emitting lasers (VCSELs) which describes, in an unified way, polarization and spatial effects. The model is based on equations for the lateral dependence of the slowly-varying amplitudes of the optical field in both circular polarizations, and equations for the carrier density in both spin orientations. This provides a natural generalization of the Spin Flip Model for the description of polarization properties of VCSELs extensively used in the literature. In its present form, the model assumes given functional dependence of the guiding mechanisms (built-in refractive index and thermal lensing) as well as the spatial dependence of the current density. We investigate the transverse mode behavior of gain-guided, bottom and top-emitter VCSELs by implementing the model with an analytical approximation to the susceptibility of quantum-well semiconductors. We demonstrate that the stronger the thermal lens, the stronger the tendency towards multimode operation, which indicates that high lateral uniformity of the temperature is required in order to maintain single mode operation in gain-guided VCSELs. We perform analytical calculations of the threshold curves in both types of VCSELs. Also, close-to-threshold numerical simulations show that, depending on the current shape, thermal lensing strength and relative detuning, different transverse modes can be selected.
Description15 pages, 10 figures, 1 table, 1 appendix.
Publisher version (URL)http://dx.doi.org/10.1109/3.985571
URIhttp://hdl.handle.net/10261/18013
DOI10.1109/3.985571
ISSN0018-9197
Appears in Collections:(IMEDEA) Artículos
(IFISC) Artículos

Files in This Item:
File Description SizeFormat
00985571.pdf389,49 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work

SCOPUSTM   
Citations

53
checked on Jan 11, 2022

WEB OF SCIENCETM
Citations

46
checked on Jan 14, 2022

Page view(s)

420
checked on Jan 20, 2022

Download(s)

360
checked on Jan 20, 2022

Google ScholarTM

Check

Altmetric

Dimensions


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.