Study on the mechanically exfoliated graphene saturable absorption dependence on the number of layers and its influence on passive mode-locking erbium-doped fiber laser dynamics

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dc.contributor.authorde Freitas F.P.R.
dc.contributor.authorSteinberg D.
dc.contributor.authorRosa H.G.
dc.contributor.authorde Souza E.A.T.
dc.date.accessioned2024-03-12T19:13:00Z
dc.date.available2024-03-12T19:13:00Z
dc.date.issued2022
dc.description.abstract© 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement.We experimentally investigated the saturable absorption influence of graphene layers with natural stacking order in an erbium-doped fiber laser passive mode-locking. Mechanically exfoliated graphene saturable absorber (MEGSA) samples, ranging from 1 to 6 layers, were fabricated preserving their natural ABA stacking order and precisely characterized by 2D band profile from Raman spectroscopy. By incorporating the samples as saturable absorbers (SA) in the fiber laser, mode-locking performances with pulse duration from 670-780 fs and bandwidth from 3.8-4.6 nm could be generated. Also, we identified a transition in the mode-locking activation mechanism from non-self-starting, for monolayer and bilayer graphene, to self-starting, for trilayer and few-layer graphene, which is a strong indicative of fast-to-slow saturable absorption response dependence on the number of graphene layers.
dc.description.firstpage4506
dc.description.issuenumber12
dc.description.lastpage4517
dc.description.volume12
dc.identifier.doi10.1364/OME.473808
dc.identifier.issn2159-3930
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/34260
dc.relation.ispartofOptical Materials Express
dc.rightsAcesso Aberto
dc.titleStudy on the mechanically exfoliated graphene saturable absorption dependence on the number of layers and its influence on passive mode-locking erbium-doped fiber laser dynamics
dc.typeArtigo
local.scopus.citations3
local.scopus.eid2-s2.0-85145165270
local.scopus.subjectErbium-doped fiber lasers
local.scopus.subjectExfoliated graphene
local.scopus.subjectGraphene layers
local.scopus.subjectGraphene saturable absorbers
local.scopus.subjectLaser dynamics
local.scopus.subjectNumber of layers
local.scopus.subjectPassive mode-locking
local.scopus.subjectSaturable absorption
local.scopus.subjectSelf-starting
local.scopus.subjectStacking order
local.scopus.updated2024-12-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85145165270&origin=inward
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