Anderson localization in Bragg-guiding arrays with negative defects

Abstract

We show that Anderson localization is possible in waveguide arrays with periodically-spaced defect waveguides having lower refractive index. Such localization is mediated by Bragg reflection, and it takes place even if diagonal or off-diagonal disorder affects only defect waveguides. For off-diagonal disorder the localization degree of the intensity distributions monotonically grows with increasing disorder. In contrast, under appropriate conditions, increasing diagonal disorder may result in weaker localization.

4 pages, 5 figures, to appear in Optics Letters

References in corpus (2)

• Direct observation of Anderson localization of matter-waves in a controlled disorder
• Bifurcations and stability of gap solitons in periodic potentials

Cited by in corpus (2)

• Analysis of transverse Anderson localization in refractive index structures with customized random potential
• Anderson localization of light with topological dislocations