title: Stimulated Brillouin scattering in ultra-long distributed feedback Bragg gratings in standard optical fiber.
abstract: Distributed feedback (DFB) fiber Bragg gratings (FBG) are widely used as narrow-band filters and single-mode cavities for lasers. Recently, a nonlinear generation has been shown in 10-20 cm DFB gratings in a highly nonlinear fiber. First, we show in this Letter a novel fabrication technique of ultra-long DFBs in a standard fiber (SMF-28). Second, we demonstrate nonlinear generation in such gratings. A particular inscription technique was used to fabricate all-in-phase ultra-long FBG and to implement reproducible phase shift to form a DFB mode. We demonstrate stimulated Brillouin scattering (SBS) emission from this DFB mode and characterize the resulting laser. It seems that such a SBS based DFB laser stabilizes a pump's jittering and reduces its linewidth.
authors.forename: Sébastien
authors.initials: S
authors.lastname: Loranger
authors.forename: Victor
authors.initials: V
authors.lastname: Lambin-Iezzi
authors.forename: Mamoun
authors.initials: M
authors.lastname: Wahbeh
authors.forename: Raman
authors.initials: R
authors.lastname: Kashyap