Optical waveguides – Planar optical waveguide – Thin film optical waveguide
Reexamination Certificate
2005-07-12
2005-07-12
Kim, Ellen E. (Department: 2874)
Optical waveguides
Planar optical waveguide
Thin film optical waveguide
C385S130000, C385S129000, C398S048000, C398S068000
Reexamination Certificate
active
06917744
ABSTRACT:
The invention provides an optical multiplexing and demultiplexing device using a two-dimensional photonic crystal, in which miniaturization and higher integration thereof can be achieved; an optical communication apparatus; and an optical communication system. The optical multiplexing and demultiplexing device of the present invention includes a substrate; and a plurality of slab layers provided on the substrate. The slab layers each have a two-dimensional photonic crystal structure, in which low refractive index regions are periodically arranged. In addition, the slab layers have line defects, provided in part of the periodical arrangement so as to function as a waveguide, and at least point defects formed in the respective periodic arrangements, the point defects capturing light having a specific wavelength and introducing it to the line defects or capturing light having a specific wavelength from the line defects and radiating it. The point defects, which capture light having the same wavelength, provided in the slab layers are disposed so as to oppose each other.
REFERENCES:
patent: 5684817 (1997-11-01), Houdre et al.
patent: 6416575 (2002-07-01), Yamada
patent: 6738551 (2004-05-01), Noda et al.
patent: A 2001-272555 (2001-10-01), None
patent: A 2001-022981 (2002-01-01), None
patent: A 2002-258079 (2002-09-01), None
Oliff & Berridg,e PLC
Seiko Epson Corporation
Wood Kevin S.
LandOfFree
Optical multiplexing and demultiplexing device, optical... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical multiplexing and demultiplexing device, optical..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical multiplexing and demultiplexing device, optical... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3369127