Patent · US Active

Electro-optical modulator

US9829765B2 · kind B2 · utility

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15Claims

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Assignee

Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

Karl-Otto Velthaus · Kleinmachnow, DE
Marko Rausch · Berlin, DE

Key dates

Filing date	Nov 25, 2014
Grant date	Nov 28, 2017
Priority date	—
Expiry date	Nov 25, 2034

Classification

Technology area (CPC G)Physics
CPC primaryG02F2201/127
WIPO fieldOptics
WIPO sectorInstruments

Abstract

An electro-optical modulator is provided. The electro-optical modulator comprises at least one optical waveguide, an electrode arrangement for applying a voltage across the optical waveguide. The electrode arrangement comprises a first and a second electrical line and at least two terminating resistors terminating the first and the second electrical line. The electrode arrangement comprises at least one capacitive structure that capacitively couples, but galvanically separates the two terminating resistors. The capacitive structure comprises at least two electrically conductive layers physically arranged at a position between the first and the second electrical line, wherein the at least two layers are separated by at least one dielectric layer.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.