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US Patent 7480430 Partial confinement photonic crystal waveguides

Patent 7480430 was granted and assigned to Massachusetts Institute of Technology on January, 2009 by the United States Patent and Trademark Office.

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Patent abstract

An optical waveguide structure includes an air-via region that receives an optical signal from an optical source. A photonic crystal cladding region is formed on the surface of the air-via region. The photonic crystal cladding region confines the optical signal within the air-via region and propagates the optical signal along the axial direction while ensuring near complete transmission of the optical signal.

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