title: Magnetic-force-induced long-period fiber gratings.
abstract: A novel formation method of a long-period fiber grating (LPFG) based on a magnetic-force-induced microbend is proposed and experimentally demonstrated. The LPFG employs a permanent magnet that exerts transversal force to the fiber by attracting a steel coil spring. The transversal force causes periodic microbending to the fiber, and therefore the transmission wave attenuates at the core-to-cladding mode resonance. This device has advantages of ease of fabrication, reconfigurability, and available for any type of fiber.
authors.affiliation: Department of Electrical and Electronic Engineering, Shizuoka University, Naka-ku, Hamamatsu, Japan. thsakat@ipc.shizuoka.ac.jp
authors.forename: Hajime
authors.initials: H
authors.lastname: Sakata
authors.forename: Kosuke
authors.initials: K
authors.lastname: Yamahata