Modeling of racetrack-resonator add-drop filters with arbitrary nonlinear directional couplers |
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Authors: | Gómez-Alcalá Rafael Fraile-Peláez F Javier Chamorro-Posada Pedro Díaz-Otero Francisco J |
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Affiliation: | Dept. Tecnología de los computadores y de las Comunicaciones, Universidad de Extremadura Escuela Politécnica, Av. Universidad, s/n. E-10003 Cáceres, Spain. rgomezal@unex.es |
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Abstract: | In this Letter we employ the general coupled-mode equations of the nonlinear directional coupler and demonstrate that the switching characteristics of prototypical nonlinear racetrack-resonator structures may differ considerably from those obtained when the standard, generally incorrect, coupled-mode equations are used. |
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