An apparatus and associated method for modulating the propagation constant of a region of modulating propagation constant in an optical waveguide. The method comprising positioning an electrode of a prescribed electrode shape proximate the waveguide. The region of modulating propagation constant is projected into the waveguides that correspond, in shape, to the prescribed electrode shape by applying a voltage to the shaped electrode. The propagation constant of the region of modulating propagation constant is controlled by varying the voltage.

Un aparato y un método asociado para modular la constante de propagación de una región de la constante de propagación de modulación en una guía de onda óptica. El método que abarca colocando un electrodo de una forma prescrita del electrodo próxima la guía de onda. La región de la constante de propagación de modulación se proyecta en las guías de onda que corresponden, en forma, a la forma prescrita del electrodo aplicando un voltaje al electrodo formado. La constante de propagación de la región de la constante de propagación de modulación es controlada variando el voltaje.

 
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