Optical delay circuit, integrated optical device, and method...

Details Optical delay circuit, integrated optical device, and method... Optical delay circuit, integrated optical device, and method...

2007-01-02

2007-01-02

Healy, Brian M. (Department: 2883)

Optical waveguides

Integrated optical circuit

C385S129000, C385S130000, C385S131000, C385S024000, C385S141000, C438S029000, C438S031000, C398S079000, C398S082000, C398S083000, C398S085000, C398S098000, C398S101000

Reexamination Certificate

active

11185027

ABSTRACT:
An optical delay circuit includes a plurality of defect waveguides arranged in parallel and including a line-shaped defect in a periodic refractive-index distribution structure of a photonic crystal. The defect waveguides include a multiplexing/demultiplexing portion in which the defect waveguides are arranged close to each other to multiplex and demultiplex light; and an optical delay portion extending from the multiplexing/demultiplexing portion, in which the defect waveguides are arranged with a predetermined distance therebetween so that light propagating in any of the defect waveguides does not interfere with light propagating in the other defect waveguides. Each of the waveguides has a different configuration.

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