Electro-optical modulator devices

US9835927B2 · kind B2 · utility

Assignee

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

Inventors

• Karl-Otto Velthaus · Kleinmachnow, DE
• Marko Rausch · Berlin, DE
• Jung-han Choi · Hwaseong-si, KR
• Lei Yan · Beijing, CN

Key dates

• Filing date: Nov 25, 2014
• Grant date: Dec 5, 2017
• Expiry date: Nov 25, 2034

Classification

• Technology area (CPC G): Physics
• CPC primary: G02F2201/127
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

An electro-optical modulator device is provided. The electro-optical modulator device comprises at least one electro-optical modulator having a first and a second optical waveguide and an electrode arrangement for applying a voltage across the optical waveguide, wherein the electrode arrangement comprises a plurality of first waveguide electrodes and a plurality of second waveguide electrodes arranged on top of the first and the second optical waveguide, respectively, wherein the first and second waveguide electrodes are capacitively coupled to one another; and at least one driver unit for supplying a voltage to the electrode arrangement; and an electrical connection between the driver unit and the electrode arrangement. The electrical connection between the driver unit and the electrode arrangement comprises a flexible coplanar strip line.