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 8270778 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 18, 2012

Filed:

Aug. 06, 2010
Applicants:

Michael J. Hochberg, Seattle, WA (US);

Thomas W. Baehr-jones, Seattle, WA (US);

Inventors:

Michael J. Hochberg, Seattle, WA (US);

Thomas W. Baehr-Jones, Seattle, WA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/035 (2006.01); G02F 1/295 (2006.01);
U.S. Cl.
CPC ...
Abstract

A single-photon absorption all-optical signal-processing device, systems employing the same, and methods of making and using the same. Illustrative examples are provided based on silicon semiconductor technology that employs rectangular waveguides fabricated on SOI wafers. In some embodiments, it is observed that the waveguides have surface state density, σ, of not less than 1.5×10cmsmWto provide a single-photon absorption operation mode. In some embodiments, some portion of the ridge waveguide structure has a surface to volume ratio of at least 18 μm, computed using a unit length of 1 μm of the waveguide, with the width and depth dimensions of the waveguide being measured in units of microns.


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Hochberg, Michael. (2012). Enhanced silicon all-optical modulator (U.S. Patent No. 8270778). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8270778

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