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:
Mar. 19, 2013
Filed:
Feb. 12, 2010
Hideaki Okayama, Tokyo, JP;
Hideaki Okayama, Tokyo, JP;
Oki Electric Industry Co., Ltd., Tokyo, JP;
Abstract
There is provided an optical resonator including: N individual optical waveguide paths of line segment shape disposed in a common flat-plane so as to intersect at a single intersection region, wherein N is an integer of 2 or more; curved optical waveguide paths connecting respective portions of the optical waveguide paths that extend towards the outside from the intersection region, wherein for a first to a 2Noptical waveguide path portions in a clockwise direction, connection is made between end portions at the opposite side to the intersection region of the (2i−1)to 2ioptical waveguide path portions, wherein i is an integer of 1 to N; and an optical coupler that couples light input or output perpendicular to the flat-plane with the optical waveguide paths, the optical coupler being formed in a region containing the intersection region where the optical waveguide paths are connected.