US Patent 7848602 Waveguide structure and arrayed waveguide grating structure

Patent 7848602 was granted and assigned to Electronics and Telecommunications Research Institute on December, 2010 by the United States Patent and Trademark Office.

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Patent

Patent attributes

Current Assignee

Electronics and Telecommunications Research Institute

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

78486020

Patent Inventor Names

Duk-Jun Kim0

Jong-Moo Lee0

Gyung-Ock Kim0

Junghyung Pyo0

Jung-Ho Song0

Date of Patent

December 7, 2010

Patent Application Number

121995170

Date Filed

August 27, 2008

Patent Primary Examiner

Charlie Peng

Patent 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.

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