EFFICIENT MODAL DISPERSION PHASE-MATCHED FREQUENCY-DOUBLING IN POLED POLYMER WAVE-GUIDES

We report the design, manufacture, and characterization of poled polymer multilayer waveguides for frequency doubling. Phase matching is obtained by using modal dispersion between the zeroth-order fundamental lightwave and the first-order second-harmonic wave. By incorporating a very thin high refractive index satellite layer, the phase-match condition can be fulfilled with concomitant large overlap between the two waves, resulting in efficient doubling.