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Journal Article

Higher-order Dirac solitons in binary waveguide arrays


Tran,  Truong X.
Biancalana Research Group, Research Groups, Max Planck Institute for the Science of Light, Max Planck Society;

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Tran, T. X., & Duong, D. C. (2015). Higher-order Dirac solitons in binary waveguide arrays. ANNALS OF PHYSICS, 361, 501-508. doi:10.1016/j.aop.2015.07.015.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002D-636E-6
We study optical analogues of higher-order Dirac solitons (HODSs) in binary waveguide arrays. Like higher-order solitons obtained from the well-known nonlinear Schrodinger equation governing the pulse propagation in an optical fiber, these HODSs have amplitude profiles which are numerically shown to be periodic over large propagation distances. At the same time, HODSs possess some unique features. Firstly, the period of a HODS depends on its order parameter. Secondly, the discrete nature in binary waveguide arrays imposes the upper limit on the order parameter of HODSs. Thirdly, the order parameter of HODSs can vary continuously in a certain range. (C) 2015 Elsevier Inc. All rights reserved.