title: Suspended-core fiber Bragg grating sensor for directional-dependent transverse stress monitoring.
abstract: This Letter presents simulation and experimental results of orientation-dependent transverse stress fiber sensors using fiber Bragg gratings (FBGs) inscribed in four-hole suspended-core fibers. Resonant peak shifts and splitting of FBGs were studied as functions of the applied transverse load and fiber orientation. Both simulation and experimental results revealed that the response of FBGs in suspended-core fibers is sensitive to both the orientation and magnitude of an applied transverse stress.
authors.affiliation: Department of Electrical and Computer Engineering, University of Pittsburgh, 3700 O'Hara Street, Pittsburgh, Pennsylvania 15261, USA.
authors.forename: Charles M
authors.initials: CM
authors.lastname: Jewart
authors.forename: Tong
authors.initials: T
authors.lastname: Chen
authors.forename: Eric
authors.initials: E
authors.lastname: Lindner
authors.forename: Julia
authors.initials: J
authors.lastname: Fiebrandt
authors.forename: Manfred
authors.initials: M
authors.lastname: Rothhardt
authors.forename: Kay
authors.initials: K
authors.lastname: Schuster
authors.forename: Jens
authors.initials: J
authors.lastname: Kobelke
authors.forename: Hartmut
authors.initials: H
authors.lastname: Bartelt
authors.forename: Kevin P
authors.initials: KP
authors.lastname: Chen