Formation and light guiding properties of dark solitons in one-dimensional waveguide arrays

Abstract

We report on the formation of dark discrete solitons in a nonlinear periodic system consisting of evanescently-coupled channel waveguides that are fabricated in defocusing lithium niobate. Localized nonlinear dark modes displaying a phase jump in the center that is located either on-channel (mode A) or in-between channels (mode B) are formed, which is to our knowledge the first experimental observation of mode B. By numerical simulations we find that the saturable nature of the nonlinearity is responsible for the improved stability of mode B. The ability of the induced refractive index structures to guide light of a low-power probe beam is demonstrated.

4 pages, 6 figures, submitted to Physical Review Letters

References in corpus (6)

• Discrete Solitons and Breathers with Dilute Bose-Einstein Condensates
• Observation of discrete vortex solitons in optically-induced photonic lattices
• Discrete breathers in nonlinear lattices: Experimental detection in a Josephson array
• Experimental Generation and Observation of Intrinsic Localized Spin Wave Modes in an Antiferromagnet
• Self-trapping and stable localized modes in nonlinear photonic crystals
• Multistable Solitons in the Cubic-Quintic Discrete Nonlinear Schrödinger Equation

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