title: Temperature-insensitive polarimetric vibration sensor based on HiBi microstructured optical fiber.
abstract: A new type of highly birefringent microstructured optical fiber has been tested for vibration measurements using a polarimetric technique. This technique takes advantage of the stress-induced phase shift between the two orthogonally polarized fiber eigenmodes. Comparison of three different fiber types shows that standard single-mode fibers do not provide stable measurements and that conventional polarization-maintaining fibers lead to a significant cross-sensitivity to temperature. However, for highly birefringent microstructured fibers specifically designed to provide a temperature-independent birefringence, our experiments show repeatable vibration measurements over a frequency range extending from 50 Hz to 1 kHz that are unaffected by temperature variations (up to 120 °C).
authors.affiliation: Service d’Electromagnétisme et de Télécom, Faculté Polytechnique de Mons, Bld Dolez 31, 7000 Mons, Belgium. karima.chah@umons.ac.be
authors.forename: Karima
authors.initials: K
authors.lastname: Chah
authors.forename: Nicolas
authors.initials: N
authors.lastname: Linze
authors.forename: Christophe
authors.initials: C
authors.lastname: Caucheteur
authors.forename: Patrice
authors.initials: P
authors.lastname: Mégret
authors.forename: Pierre
authors.initials: P
authors.lastname: Tihon
authors.forename: Olivier
authors.initials: O
authors.lastname: Verlinden
authors.forename: Sanne
authors.initials: S
authors.lastname: Sulejmani
authors.forename: Thomas
authors.initials: T
authors.lastname: Geernaert
authors.forename: Francis
authors.initials: F
authors.lastname: Berghmans
authors.forename: Hugo
authors.initials: H
authors.lastname: Thienpont
authors.forename: Marc
authors.initials: M
authors.lastname: Wuilpart