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Coupled mode formulation for directional couplers with longitudinal perturbation

By: Itzkovich, M.; Griffel, G.; Hardy, A.A.;

1991 / IEEE

Description

This item was taken from the IEEE Periodical ' Coupled mode formulation for directional couplers with longitudinal perturbation ' A grating-assisted directional coupler is investigated using an improved coupled-mode formulation for multi-waveguide systems with longitudinal perturbation. This approach is capable of handling three-dimensional structures as well as a complex index of refraction and nonisotropic media. The case of two coupled channel waveguides is closely examined, and a numerical analysis is carried out for several cases of slab structures.<>