Slow light with flat or offset band edges in multi-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.

6 pages, 3 figures

References in corpus (1)

• Gigantic transmission band edge resonance in periodic stacks of anisotropic layers

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