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

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 t...

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Bibliographic Details
Published in:Optics letters 2020-09, Vol.45 (18), p.5221-5224
Main Authors: Nguyen, Viet Hung, The Tai, Le Xuan, Bugar, Ignac, Longobucco, Mattia, Buczyński, Ryszard, Malomed, Boris A., Trippenbach, Marek
Format: Article
Language:English
Subjects:
Femtosecond pulses
Nonlinear equations
Nonlinear optics
Optical fibers
Schrodinger equation
Solitary waves
Switching
Trapping
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Summary: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.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.404039