Low-loss liquid-crystal-clad waveguide switch with a large angular separation of the optical beams

Abstract

We propose a new nematic liquid-crystal-clad electrooptic waveguide beamsplitter simultaneously capable of very high beam deflections and relatively low losses. A trade-off between the deflection and the cross talk due to unswitched spatial frequencies of a realistic diverging beam is discussed with respect to waveguide materials and geometries.