title: Fiber Bragg grating as an optical filter tuned by a magnetic field.
abstract: We describe a novel tunable optical filter for use in optical-frequency-domain multiplexed communication systems. The shift in the Bragg condition of a fiber Bragg grating as a result of magnetically induced circular birefringence is calculated with coupled-mode theory on the basis of circular states of polarization, and the values obtained for silica and terbium-doped optical fibers are compared.
authors.forename: J L
authors.initials: JL
authors.lastname: Arce-Diego
authors.forename: R
authors.initials: R
authors.lastname: López-Ruisánchez
authors.forename: J M
authors.initials: JM
authors.lastname: López-Higuera
authors.forename: M A
authors.initials: MA
authors.lastname: Muriel