Production and characterization of Tm3+/Yb3+ codoped pedestal-type PbO-GeO2 waveguides

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dc.contributor.authorAssumpcao, T.
dc.contributor.authorAlvarado, M. A.
dc.contributor.authorAlayo, M. I.
dc.contributor.authorKassab, L. R P [UNESP]
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2015-03-18T15:55:24Z
dc.date.available2015-03-18T15:55:24Z
dc.date.issued2014-07-01
dc.description.abstractThis work explores the production and characterization of pedestal-type active waveguides based on PbO-GeO2 (PGO) thin films codoped with Tm3+/Yb3+ rare earth ions. Silicon wafers containing around 1.7 mu m of SiO2 thickness were used as substrate, and the pedestal structure was obtained by conventional photolithography and plasma etching in a reactive ion etching reactor. Plasma etching procedures were made in steps to reduce roughness at the laterals and sidewalls of waveguides. Around 0.5 mu m of Tm3+/Yb3+ codoped PGO thin film was obtained by radio frequency magnetron sputtering deposition after etching procedures. Results of scanning electron microscopy confirmed the waveguide pedestal profile. Optical propagation losses around 4, 5, and 20 dB/cm were observed at 1050, 633, and 543 nm, respectively, for waveguide width in the 30-100 mu m range. Near field profiles at these wavelengths and also at 980 nm are also reported and confirmed the multimode coupling behavior. The present results corroborate the possibility of using Tm3+/Yb3+ codoped PGO thin films as active waveguides for photonic applications.en
dc.description.affiliationUniv Sao Paulo, Escola Politecn, Dept Engn Sistemas Eletron, BR-05424970 Sao Paulo, Brazil
dc.description.affiliationUniv Estadual Paulista, CEETEPS, Fac Tecnol Sao Paulo FATEC SP, Lab Tecnol Mat Foton & Optoeletron, BR-01124060 Sao Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, CEETEPS, Fac Tecnol Sao Paulo FATEC SP, Lab Tecnol Mat Foton & Optoeletron, BR-01124060 Sao Paulo, Brazil
dc.description.sponsorshipNational Institute of Photonics (INCT Project)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.format.extent597-601
dc.identifierhttp://dx.doi.org/10.1139/cjp-2013-0591
dc.identifier.citationCanadian Journal Of Physics. Ottawa: Canadian Science Publishing, Nrc Research Press, v. 92, n. 7-8, p. 597-601, 2014.
dc.identifier.doi10.1139/cjp-2013-0591
dc.identifier.issn0008-4204
dc.identifier.urihttp://hdl.handle.net/11449/117190
dc.identifier.wosWOS:000339379500011
dc.language.isoeng
dc.publisherCanadian Science Publishing, Nrc Research Press
dc.relation.ispartofCanadian Journal Of Physics
dc.relation.ispartofjcr0.983
dc.relation.ispartofsjr0,300
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.titleProduction and characterization of Tm3+/Yb3+ codoped pedestal-type PbO-GeO2 waveguidesen
dc.typeArtigo
dcterms.rightsHolderCanadian Science Publishing, Nrc Research Press
unesp.author.orcid0000-0002-0359-4639[3]
unesp.author.orcid0000-0002-6795-5712[4]

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