The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 7970241 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 28, 2011

Filed:

Sep. 09, 2008
Applicants:

Jianxiao Chen, North Billerica, MA (US);

Charles Cox, Carlisle, MA (US);

Inventors:

Jianxiao Chen, North Billerica, MA (US);

Charles Cox, Carlisle, MA (US);

Assignee:

Photonic Systems, Inc., Billerica, MA (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/035 (2006.01); H04J 14/08 (2006.01); H01L 21/00 (2006.01); H01S 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A modulator includes an electro-optical substrate and a first and second waveguide formed of a doped semiconductor material positioned on a surface of an electro-optical substrate forming a slot therebetween. A doping level of the semiconductor material being chosen to make the first and second waveguide conductive. A dielectric material is positioned in the slot which increases confinement of both an optical field and an electrical field inside the slot. A refractive index of the semiconductor material and a refractive index of the dielectric material positioned in the slot being chosen to reduce the Vπ·L product of the modulator.


Find Patent Forward Citations

Chen, Jianxiao. (2011). High efficient silicon-on-lithium niobate modulator (U.S. Patent No. 7970241). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7970241

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