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Updated: Jul 18, 2026

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
Published on: May 30, 2014
Coexistence of Josephson oscillations and a novel self-trapping regime in optical waveguide arrays
Ramaz Khomeriki1, Jérôme Leon, Stefano Ruffo
1Dipartimento di Energetica S. Stecco and CSDC, Universitá di Firenze and INFN, via s. Marta, 3, 50139 Firenze, Italy.
Abstract:
Considering the coherent nonlinear dynamics between two weakly linked optical waveguide arrays, we find the first example of coexistence of Josephson oscillations with a novel self-trapping regime. This macroscopic bistability is explained by proving analytically the simultaneous existence of symmetric, antisymmetric, and asymmetric stationary solutions of the associated nonlinear Schrödinger equation. The effect is illustrated and confirmed by numerical simulations. This property allows us to conceive an optical switch based on the variation of the refractive index of the linking central waveguide.
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