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:
Dec. 13, 2016
Filed:
Mar. 19, 2014
Photonics Electronics Technology Research Association, Tokyo, JP;
Kenichiro Yashiki, Tokyo, JP;
Masatoshi Tokushima, Tokyo, JP;
Abstract
An optical circuit, wherein the effects of reflected light generated by an optical component are reduced. The optical circuit () is provided with an optical branching () for branching light, an optical coupler () for coupling a first portion of branched light to an optical waveguide () for transmission, and an optical reflecting unit () for reflecting a second portion of the branched light, the phase difference between the reflected light from the optical coupler () and the reflected light from the optical reflecting unit () being (2m−1)π (where m is an integer) on an input side of the optical branching ().