Optical Switch and Modulator.
DEPARTMENT OF THE NAVY WASHINGTON D C
Pagination or Media Count:
First and second optical waveguides are disposed along a coextensive parallel length sufficient in relation to the distance of propagation of optical energy for light transfer from one guide to the other. Thus, light propagating along one guide to the parallel waveguide arrangement will emerge from the other optical waveguide. Electrodes are disposed contiguous to the waveguides for generating electric fields of opposite sense upon the application of an electrical potential. Antisymmetric changes are thus induced in the refractive indices of the optical waveguides causing the light energy to be coupled back into the originally energized waveguide and modulating the intensity of the outputs of both waveguides.