title: All-optical Brillouin dynamic grating generation in few-mode optical fiber.
abstract: We report, for the first time (to our knowledge), generation of Brillouin dynamic gratings (BDGs) in few-mode optical fibers. A moving acoustic grating is generated by stimulated Brillouin scattering using a writing beam in one fiber mode, which is used to reflect a reading beam at a different wavelength in another fiber mode. With single-end pumping, a BDG with a tunable reflectance of up to 0.1% is demonstrated in a 15 km specially designed two-mode optical fiber.
authors.affiliation: Science and Technology Division, Corning Incorporated, SP-AR-06-02, Corning, New York 14831, USA. lis2@corning.com
authors.forename: Shenping
authors.initials: S
authors.lastname: Li
authors.forename: Ming-Jun
authors.initials: MJ
authors.lastname: Li
authors.forename: Richard S
authors.initials: RS
authors.lastname: Vodhanel