Abstract

Novel solution algorithms are presented for obtaining the complete power dispersion curve of nonlinear-optical channel waveguides using full vectorial finite-element analysis. With the new algorithm the jump in the modal index in power dispersion curves reported in the literature is successfully explained, and the origins of a useful bistable behavior in nonlinear-optical channel waveguides is then identified. A comparison between the full E and H formulations of nonlinear-optical waveguides is given for the first time. The structure analyzed may find applications in all-optical switching and bistability devices.

© 1993 Optical Society of America

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