Title

Wave propagation in waveguide arrays with alternating positive and negative couplings

Authors

Authors

N. K. Efremidis; P. Zhang; Z. G. Chen; D. N. Christodoulides; C. E. Ruter;D. Kip

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

Phys. Rev. A

Keywords

OPTICAL BLOCH OSCILLATIONS; PHOTONIC LATTICES; DISCRETE DIFFRACTION; DYNAMIC LOCALIZATION; GAP SOLITONS; FIBERS; MODES; LIGHT; Optics; Physics, Atomic, Molecular & Chemical

Abstract

We introduce a waveguide array model with alternating positive and negative couplings between adjacent waveguides. Two different settings where such a model can be realized are identified as arrays of defects in Bragg gratings and arrays with propagation constants that periodically vary along the propagation direction. We analyze the properties of wave propagation in such waveguide arrays and find several interesting properties that have no counterpart in the case of arrays with constant couplings. These include the beam self-splitting, self-induced Talbot oscillations, symmetric evolution of Bloch oscillations, and new families of lattice solitons.

Journal Title

Physical Review A

Volume

81

Issue/Number

5

Publication Date

1-1-2010

Document Type

Article

Language

English

First Page

5

WOS Identifier

WOS:000278140000178

ISSN

1050-2947

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