Waveguide for an electro-optic capacitive modulator
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United States of America Patent
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Jan 9, 2018
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N/A
app pub date -
Apr 12, 2016
filing date -
Apr 13, 2015
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Abstract
A waveguide including a substrate, an assembly of semiconductor regions consecutively extending on the substrate along a direction corresponding to a propagation direction of an electromagnetic wave having a wavelength noted λ, the semiconductor regions being electrically alternately doped with a first conductivity type and with a second conductivity type along the propagation direction, a dielectric layer interposed between two consecutive semiconductor regions, at least one pair of consecutive elementary structures having a dimensions along the propagation direction adapted to λ to form a grating where the light propagates with no diffraction effects.
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