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Optical delay circuit, integrated optical device, and method of manufacturing integrated optical device

Foreign code F180009599
File No. 367
Posted date Nov 16, 2018
Country United States of America
Application number 18502705
Gazette No. 20060018594
Gazette No. 7158695
Date of filing Jul 20, 2005
Gazette Date Jan 26, 2006
Gazette Date Jan 2, 2007
Priority data
  • P2004-215648 (Jul 23, 2004) JP
Title Optical delay circuit, integrated optical device, and method of manufacturing integrated optical device
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.
  • Inventor, and Inventor/Applicant
  • Sugitatsu; Atsushi
  • Hatta; Tatsuo
  • Noda; Susumu
  • Mitsubishi Electric Corporation
  • Kyoto University
IPC(International Patent Classification)
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