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.:
Date of Patent:
Oct. 25, 2016
Filed:
Jun. 25, 2015
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Akio Sugama, Atsugi, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
An optically interconnected chip includes a first optical transmitter circuit, a first spot size converter connected by a first optical waveguide to the first optical transmitter circuit, a first optical receiver circuit, a second spot size converter connected by a second optical waveguide to the first optical receiver circuit, a rotator provided between the second spot size converter and the first optical receiver circuit and configured to rotate a direction of polarization of light propagating through the second optical waveguide by 45 degrees, and a splitter provided after the rotator and configured to separate the rotated light into components according to directions of polarization of the light, wherein the first spot size converter and the second spot size converter are coupled directly to each other on a wafer.