Solitons in a Dual-core System with a Uniform Bragg Grating and a Bragg Grating with Dispersive Reflectivity

Abstract

: The existence and stability of gap solitons in a dual-core optical fiber made of a uniform and a nonuniform Bragg grating with Kerr nonlinearity are considered. The nonuniformity in the one of the cores originates from the presence of dispersive reflectivity. It is found that quiescent soliton solutions exist throughout the bandgap. Stability analysis shows that there exist vast areas within the bandgap where stable solitons exist.