title: Slow light with flat or offset band edges in few-mode fiber with two gratings.
abstract: We consider mode coupling in multimode optical fibers using either two Bragg gratings or a Bragg grating and a long-period grating. We show that the magnitude of the band edge curvature can be controlled leading to a flat, quartic band-edge or to two band edges at distinct, nonequivalent k-values, allowing precise control of slow light propagation.
authors: ARC Center of Excellence for Ultrahigh-bandwidth Devices for Optical Systems, Nonlinear Physics Centre, Research School of Physical Sciences and Engineering, Australian National University, Canberra, ACT 0200, Australia. ans124@rsphysse.anu.edu.au
authors: Andrey A
authors: AA
authors: Sukhorukov
authors: C J
authors: CJ
authors: Handmer
authors: C Martijn
authors: CM
authors: de Sterke
authors: M J
authors: MJ
authors: Steel
mesh_terms: D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008027:Light; D008962:Models, Theoretical; D055100:Optical Fibers; D012031:Refractometry / Q000295:instrumentation*; D015203:Reproducibility of Results; D012542:Scattering, Radiation; D012680:Sensitivity and Specificity