Otimização da sensibilidade à pressão de fibras de bandgap fotônico

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dc.contributor.advisorMatos, Christiano José Santiago de
dc.contributor.advisor-co1Franco, Marcos Antônio Ruggieri
dc.contributor.advisor-co1Latteshttp://lattes.cnpq.br/0138378882454566por
dc.contributor.advisor1Latteshttp://lattes.cnpq.br/6843256597783676por
dc.contributor.authorAlmeida, Aline dos Santos
dc.creator.Latteshttp://lattes.cnpq.br/3221526947166835por
dc.date.accessioned2017-09-27T12:12:31Z
dc.date.accessioned2020-05-28T18:08:50Z
dc.date.available2020-05-28T18:08:50Z
dc.date.issued2014-02-18
dc.description.abstractThis work deals with the study of the sensitivity to pressure and temperature of photonic crystal fibers aiming at applications in distributed sensing. Although PCFs allow for distributed measurement, just as conventional fibers do, this type of measurement has been little exploited, especially for pressure sensing and using all-solid fibers with guidance via a photonic bandgap (AS-PBGFs). The aim of this work is to propose, by means of mechanical/optical coupled numerical simulations, a new design for an AS-PBGF whose transmission and birefringence are sensitive to pressure variations. A conventional AS-PBGF was analyzed, showing low transmission sensitivity to pressure (~2.7 x 10-4 dB/(bar.m)) and no phase birefringence. So we proposed a modified AS-PBGF, with the inclusion of four air holes around the core, and the second and third bandgaps of this fiber were studied. At the center of the second bandgap (λ = 1.53 μm) transmission presented, for the x and y polarizations, the same behavior when submitted to ambient temperature variations; and opposite behavior when submitted to pressure variations, making it possible to distinguish betweeen the impact of these two quantities. On the other hand, the center of the third bandgap (λ = 0.93 μm) showed appreciable birefringence sensitivity to pressure (- 3.05 x 10-7 1/bar at 200 bar), which is higher than that presented in the literature (- 1,346x10-7 1/bar). At this spectral position, the low birefringence sensitivity to temperature (- 5.02 x 10-8 1/°C at 100 bar) compared with values found in the literature (- 1.362 x 10- 7 1/K), makes it possible to neglect temperature oscillations, which induce relatively small errors in the monitored pressure (induced error of ~10 bar for a temperature variation of 50 ° C).eng
dc.description.sponsorshipFinanciadora de Estudos e Projetospor
dc.description.sponsorshipFundo Mackenzie de Pesquisapor
dc.formatapplication/vnd.openxmlformats-officedocument.wordprocessingml.document*
dc.identifier.citationALMEIDA, Aline dos Santos. Otimização da sensibilidade à pressão de fibras de bandgap fotônico. 2014.83 f. Dissertação ( Engenharia Elétrica) - Universidade Presbiteriana Mackenzie, São Paulo .por
dc.identifier.urihttp://dspace.mackenzie.br/handle/10899/24448
dc.keywordssensingeng
dc.keywordshydrostatic pressurepor
dc.keywordsPhotonic crystal fiberpor
dc.languageporpor
dc.publisherUniversidade Presbiteriana Mackenziepor
dc.rightsAcesso Restritopor
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectsensoriamentopor
dc.subjectpressão hidrostáticapor
dc.subjectfibra de cristal fotônicopor
dc.subjectfibra de bandgap fotônicopor
dc.subject.cnpqCNPQ::ENGENHARIAS::ENGENHARIA ELETRICA::ELETRONICA INDUSTRIAL, SISTEMAS E CONTROLES ELETRONICOSpor
dc.titleOtimização da sensibilidade à pressão de fibras de bandgap fotônicopor
dc.typeDissertaçãopor
local.contributor.board1Souza, Eunézio Antônio de
local.contributor.board1Latteshttp://lattes.cnpq.br/9756214150140645por
local.contributor.board2Sodré Junior, Arismar Cerqueira
local.contributor.board2Latteshttp://lattes.cnpq.br/1703406475581759por
local.publisher.countryBrasilpor
local.publisher.departmentEscola de Engenharia Mackenzie (EE)por
local.publisher.initialsUPMpor
local.publisher.programEngenharia Elétricapor
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Engenharia Elétrica e Computação - Dissertações - EE Higienópolis