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Brightness enhancement in Non-Hermintian VCSELs
dc.contributor.author | Waseem Ahmed, Waqas |
dc.contributor.author | Herrero Simon, Ramon |
dc.contributor.author | Botey Cumella, Muriel |
dc.contributor.author | Staliunas, Kestutis |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Física |
dc.date.accessioned | 2020-02-26T14:08:49Z |
dc.date.issued | 2019 |
dc.identifier.citation | Waseem, W. [et al.]. Brightness enhancement in Non-Hermintian VCSELs. A: Conference on Lasers & Electro-Optics / European Quantum Electronics Conference. "2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference". Washington: Optical Society of American (OSA), 2019, p. 1. |
dc.identifier.isbn | 978-1-7281-0469-0 |
dc.identifier.uri | http://hdl.handle.net/2117/178731 |
dc.description.abstract | Vertical Cavity Surface Emitting lasers (VCSELs) are compact and efficient light sources useful for a variety of applications. However, due to lack of a transverse mode control mechanism, such lasers suffer from poor spatial beam quality, intrinsic spatiotemporal instabilities and nonlinear destabilizing effects such as filamentation and spatial hole burning [1]. Therefore, there is a need for new strategies to manipulate the light wave dynamics to enhance the stability of VCSELs. Recently, non-Hermitian media have become a flexible platform for new functionalities such as asymmetric coupling, unidirectional invisibility, single mode lasing [2-3]. In this presentation, we propose a novel stabilization mechanism for VCSELs to obtain bright and narrow beams. The mechanism relies on non-Hermitian configuration of the laser potential, achieved by simultaneous spatial modulation of the refractive index and gain-loss profiles. |
dc.format.extent | 1 p. |
dc.language.iso | eng |
dc.publisher | Optical Society of American (OSA) |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Spain |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
dc.subject | Àrees temàtiques de la UPC::Física |
dc.subject.lcsh | Optics |
dc.subject.lcsh | Electrooptics |
dc.subject.other | VCSEL PT-symmetry Non_Hermiticity |
dc.title | Brightness enhancement in Non-Hermintian VCSELs |
dc.type | Conference report |
dc.subject.lemac | Òptica |
dc.subject.lemac | Làsers |
dc.subject.lemac | Electroòptica |
dc.contributor.group | Universitat Politècnica de Catalunya. DONLL - Dinàmica no Lineal, Òptica no Lineal i Làsers |
dc.identifier.doi | 10.1109/CLEOE-EQEC.2019.8873173 |
dc.identifier.dl | OSA Technical Digest (Optical Society of America, 2019) |
dc.relation.publisherversion | https://ieeexplore.ieee.org/document/8873173 |
dc.rights.access | Restricted access - publisher's policy |
local.identifier.drac | 26738647 |
dc.description.version | Postprint (published version) |
dc.date.lift | 10000-01-01 |
local.citation.author | Waseem, W.; Herrero, R.; Botey, M.; Staliunas, K. |
local.citation.contributor | Conference on Lasers & Electro-Optics / European Quantum Electronics Conference |
local.citation.pubplace | Washington |
local.citation.publicationName | 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference |
local.citation.startingPage | 1 |
local.citation.endingPage | 1 |