title: Spectral characterization of a photonic bandgap fiber for sensing applications.
abstract: We study the measurand-induced spectral shift of the photonic bandgap edge of a hollow-core photonic crystal fiber. The physical measurands considered are strain, temperature, curvature, and twist. A noticeable sensitivity to strain, temperature, and twist is observed, with a blueshift to increase strain and twist. An increase in temperature induces a redshift. On the other hand, curvature has no observable effect on the spectral position of the photonic bandgap edge.
authors.affiliation: Instituto de Engenharia de Sistemas e Computadores do Porto, Rua do Campo Alegre 687, 4169-007 Porto, Portugal. h-aref@cc.sbu.ac.ir
authors.forename: S Hashem
authors.initials: SH
authors.lastname: Aref
authors.forename: Rodrigo
authors.initials: R
authors.lastname: Amezcua-Correac
authors.forename: Joel P
authors.initials: JP
authors.lastname: Carvalho
authors.forename: Orlando
authors.initials: O
authors.lastname: Frazão
authors.forename: José L
authors.initials: JL
authors.lastname: Santos
authors.forename: Francisco M
authors.initials: FM
authors.lastname: Araújo
authors.forename: Hamid
authors.initials: H
authors.lastname: Latifi
authors.forename: Faramarz
authors.initials: F
authors.lastname: Farahi
authors.forename: Luis A
authors.initials: LA
authors.lastname: Ferreira
authors.forename: Jonathan C
authors.initials: JC
authors.lastname: Knight