Slow light with flat or offset band edges in multi-mode fiber with two gratings

Sukhorukov, Andrey A.; Handmer, C. J.; de Sterke, C. Martijn; Steel, M. J.

Slow light with flat or offset band edges in multi-mode fiber with two gratings

Authors

Sukhorukov, Andrey A.

Handmer, C. J.

de Sterke, C. Martijn

Steel, M. J.

Description

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