Dynamical light control in longitudinally modulated segmented waveguide arrays

Abstract

We address light propagation in segmented waveguide arrays where the refractive index is longitudinally modulated with an out-of-phase modulation in adjacent waveguides, so that the coupling strength varies along propagation direction. Thus in resonant segments coupling may be inhibited hence light remains localized, while in detuned segments coupling results in complex switching scenarios that may be controlled by stacking several resonant and nonresonant segments. By tuning the modulation frequency and lengths of waveguide segments one may control the distribution of light among the output guides, including loca-lizing all light in the selected output channel.

12 pages, 4 figures, to appear in Europhysics Letters

References in corpus (4)

• Visualization of Coherent Destruction of Tunneling in an Optical Double Well System
• Diffraction-managed solitons and nonlinear beam diffusion in modulated arrays of optical waveguides
• Arrayed and checkerboard optical waveguides controlled by the electromagnetically-induced transparency
• Light bullets by synthetic diffraction-dispersion matching