Readdressable interconnects with spatial soliton waveguides in liquid crystal light valves

A. Piccardi, A. Alberucci, U. Bortolozzo, S. Residori and G. Assanto

IEEE Photon. Technol. Lett. 22, 694 (2010)


We excite spatial solitons by reorientational nonlinearity of the nematic liquid crystals, using a photoconductive light valve to implement an external light-driven control of their trajectories. Control spots provide deviations of the solitons and allow implementing various routing operations. We demonstrate 2-bit (4-output) and 3-bit (8-output) spatial demultiplexers and a continuously adjustable / power-dependent junction