Abstract

Analytical and numerical studies of the coherent propagation of laser radiation in a small-sized system of weakly coupled fibers are carried out. Configurations of the wave field in a multi-core fiber are found to ensure coherent propagation of radiation with a power exceeding the critical for self-focusing in a homogeneous medium. Analogous solutions in form of temporal solitons are found in such a small-sized discrete system for pulsed laser radiation.

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