title: Sensitivity enhancement of fiber Bragg gratings to transverse stress by using microstructural fibers.
abstract: We present simulation and experimental results of fiber Bragg grating responses to transverse stress in microstructure fibers. The grating wavelength shifts and peak splits are studied as a function of external load and fiber orientation. Both simulation and measurement results indicate that the sensitivity of grating sensors to the transverse stress can be enhanced by a factor of eight in a two-hole fiber over that in a standard fiber.
authors.affiliation: Department of Electrical and Computer Engineering, University of Pittsburgh, 3700 O'Hara Street, Pittsburgh, Pennsylvania 15261, USA.
authors.forename: Charles
authors.initials: C
authors.lastname: Jewart
authors.forename: Kevin P
authors.initials: KP
authors.lastname: Chen
authors.forename: Ben
authors.initials: B
authors.lastname: McMillen
authors.forename: Michael M
authors.initials: MM
authors.lastname: Bails
authors.forename: Steven P
authors.initials: SP
authors.lastname: Levitan
authors.forename: John
authors.initials: J
authors.lastname: Canning
authors.forename: Ilya V
authors.initials: IV
authors.lastname: Avdeev