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Reversible ultrafast soliton switching in dual-core highly nonlinear optical fibers

Viet Hung Nguyen, Le Xuan The Tai, Ignac Bugar, Mattia Longobucco, Ryszard Buczyński, Boris A. Malomed, and Marek Trippenbach

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Abstract

We experimentally investigate a nonlinear switching mechanism in a dual-core highly nonlinear optical fiber. We focus the input stream of femtosecond pulses on one core only, to identify transitions between inter-core oscillations, self-trapping in the cross core, and self-trapping of the pulse in the straight core. A model based on the system of coupled nonlinear Schrödinger equations provides surprisingly good agreement with the experimental findings.

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