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, Marek Trippenbach
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.
Topics & Concepts
Ultrashort pulseOpticsNonlinear systemNonlinear opticsFemtosecondSolitonSelf-phase modulationOptical fiberPulse shapingMaterials scienceFocus (optics)PhysicsPulse (music)Cross-phase modulationOptical switchNonlinear opticalCore (optical fiber)Refractive indexNonlinear mediumKerr effectFiber laserUltrafast opticsMode-lockingFemtosecond pulsePulse compressionOptoelectronicsFemtosecond pulse shapingPhotonic-crystal fiberCoupled mode theorySelf-focusingDispersion (optics)Nonlinear Photonic SystemsAdvanced Fiber Laser TechnologiesPhotonic Crystal and Fiber Optics