Wave propagation in waveguide arrays with alternating positive and negative couplings

Journal Article · Sat May 15 00:00:00 EDT 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.81.053817· OSTI ID:21408904

Efremidis, Nikolaos K ^[1]; Peng, Zhang; Zhigang, Chen ^[2]; Christodoulides, Demetrios N ^[3]; Rueter, Christian E; Kip, Detlef ^[4]

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1. Department of Applied Mathematics, University of Crete, GR-71409 Heraklion, Crete (Greece)
2. Department of Physics and Astronomy, San Francisco State University, San Francisco, California 94132 (United States)
3. Center for Research and Education in Optics and Lasers, School of Optics, University of Central Florida, Orlando, Florida 32816 (United States)
4. Helmut Schmidt University, Department of Electrical Engineering, D-22043 Hamburg (Germany)

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.

• OSTI ID: 21408904
• Journal Information: Physical Review. A, Vol. 81, Issue 5; Other Information: DOI: 10.1103/PhysRevA.81.053817; (c) 2010 The American Physical Society; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
COUPLINGS
DEFECTS
OSCILLATIONS
PERIODICITY
WAVE PROPAGATION
WAVEGUIDES
VARIATIONS