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Opt Express. 2011 Jul 4;19(14):13636-46. doi: 10.1364/OE.19.013636.

Anderson localization in optical waveguide arrays with off-diagonal coupling disorder.

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1
CREOL, The College of Optics & Photonics, University of Central Florida, Orlando, FL 32816, USA.

Abstract

We report on the observation of Anderson wave localization in one-dimensional waveguide arrays with off-diagonal disorder. The waveguide elements are inscribed in silica glass, and a uniform random distribution of coupling parameters is achieved by a precise variation of the relative waveguide positions. In the absence of disorder we observe ballistic transport as expected from discrete diffraction in periodic arrays. When off-diagonal disorder is deliberately introduced into the array we observe Anderson localization. The strength of the localization signature increases with higher levels of disorder.

PMID:
21747520
[Indexed for MEDLINE]
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