Generalized exact dynamic localization in curved coupled optical waveguide arrays

Phys Rev Lett. 2012 Sep 7;109(10):103901. doi: 10.1103/PhysRevLett.109.103901. Epub 2012 Sep 7.

Abstract

We observed exact dynamic localization in its general case in strongly coupled curved waveguide arrays with periodic, nonsquare-wave curvatures. We achieved a six times change in the dynamic localization bandwidth by changing a design parameter in our deviated-square-wave curvature. By analyzing the relation between the bandwidth and curvature profile, we offer a general method to control the localization bandwidth.