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. 07, 2010
Filed:
Aug. 27, 2008
Duk-jun Kim, Daejoen, KR;
Jung-ho Song, Daejeon, KR;
Jong-moo Lee, Daejeon, KR;
Junghyung Pyo, Seoul, KR;
Gyung-ock Kim, Seoul, KR;
Duk-Jun Kim, Daejoen, KR;
Jung-Ho Song, Daejeon, KR;
Jong-Moo Lee, Daejeon, KR;
Junghyung Pyo, Seoul, KR;
Gyung-Ock Kim, Seoul, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
Provided are a waveguide structure and an arrayed waveguide grating structure. The arrayed waveguide grating structure includes an input star coupler, an output star coupler, and a plurality of arrayed waveguides optically connecting the input star coupler and the output star coupler. Each of the arrayed waveguides includes at least one section having a high confinement factor and at least two sections having a relatively low confinement factor. The sections of the arrayed waveguides having a high confinement factor have the same structure.