Optimization of Graphene on D-Fiber Saturable Absorbers

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dc.contributor.authorLondono-Giraldo D.F.
dc.contributor.authorDe Souza E.A.T.
dc.contributor.authorFragnito H.L.
dc.date.accessioned2024-03-12T19:13:58Z
dc.date.available2024-03-12T19:13:58Z
dc.date.issued2022
dc.description.abstract© 1983-2012 IEEE.The graphene-light interaction in a waveguide can be optimized through the waveguide design. In the case of nonlinear optical devices, such as saturable absorbers, this optimization requires knowledge of the actual intensity that quantifies the nonlinear interaction with a waveguide mode. In this work we propose parameters that correctly quantify the strength of saturable absorption. We show that the graphene on D-fiber saturable absorber can be characterized through the absorption coefficient and a properly defined saturation power for each mode. We analyze the dependence of the graphene-light interaction on the geometrical parameters, chemical potential, number of graphene layers, and input power. The results show a wide variation of the graphene absorption with the design, which offers potential for polarizers with large polarization extinction ratios and saturable absorbers with low saturation powers. As a function of the number of layers, the interaction is maximized for five layers, and we predict a reverse saturable absorption effect for higher number of layers. The parameters introduced here to quantify the nonlinear graphene-light interaction can be applied to other waveguide structures and other 2D materials.
dc.description.firstpage6249
dc.description.issuenumber18
dc.description.lastpage6256
dc.description.volume40
dc.identifier.doi10.1109/JLT.2022.3188216
dc.identifier.issn1558-2213
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/34309
dc.relation.ispartofJournal of Lightwave Technology
dc.rightsAcesso Aberto
dc.subject.otherlanguageGraphene
dc.subject.otherlanguageoptical fiber devices
dc.subject.otherlanguageoptical waveguide components
dc.subject.otherlanguagesaturable absorbers
dc.titleOptimization of Graphene on D-Fiber Saturable Absorbers
dc.typeArtigo
local.scopus.citations2
local.scopus.eid2-s2.0-85134232577
local.scopus.subjectD fiber
local.scopus.subjectLight interaction
local.scopus.subjectNonlinear optical devices
local.scopus.subjectNumber of layers
local.scopus.subjectOptical fiber devices
local.scopus.subjectOptical fiber polarization
local.scopus.subjectOptical waveguide components
local.scopus.subjectOptimisations
local.scopus.subjectSaturation power
local.scopus.subjectWaveguide design
local.scopus.updated2025-06-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85134232577&origin=inward
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