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Organic electro-optical modulator with sol-gel SiO2/carbon nanotube clad layer

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Abstract

Organic electro-optical (EO) materials have been widely developed for high frequency modulators due to its low cost, high EO coefficient and easy for fabrication1, 2. Generally in EO modulator, EO materials are used for core which is sandwiched by top and bottom clad layers. Typically organic EO materials have larger conductivity compared with clad layer materials, so it is important to choose a suitable clad materials which have a compatible or large conductivity, low refractive index, and low optical loss. Here we demonstrate an EO modulator in which a sol-gel SiO2 doping with carbon nanotube are used for clad layers.

© 2013 Japan Society of Applied Physics, Optical Society of America

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