title: Self-advanced fast light propagation in an optical fiber based on Brillouin scattering.
abstract: We experimentally demonstrate an extremely simple technique to achieve pulse advancements in optical fibers by using both spontaneous amplified and stimulated Brillouin scattering. It is shown that the group velocity of a light signal is all-optically controlled by its average power while it propagates through an optical fiber. The signal generates an intense back-propagating Stokes emission that causes a loss on the signal through depletion. This narrowband loss gives rise to a fast light propagation at the exact signal frequency. The Stokes emission self-adapts in real time to the Brillouin properties of the fiber and to a wide extent to the signal bandwidth.
authors.affiliation: Ecole Polytechnique Fédérale de Lausanne, STI-GR-SCI Station 11, CH-1015 Lausanne, Switzerland. sanghoon.chin@epfl.ch
authors.forename: Sanghoon
authors.initials: S
authors.lastname: Chin
authors.forename: Miguel
authors.initials: M
authors.lastname: Gonzalez-Herraez
authors.forename: Luc
authors.initials: L
authors.lastname: Thevenaz
mesh_terms: D000669:Amplifiers, Electronic; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D007834:Lasers; D008027:Light; D055100:Optical Fibers; D012031:Refractometry / Q000295:instrumentation* / Q000379:methods; D012542:Scattering, Radiation