Optical waveguide device

Details Optical waveguide device Optical waveguide device

2007-04-03

2007-04-03

Healy, Brian (Department: 2883)

Optical waveguides

Planar optical waveguide

C385S131000, C385S132000

Reexamination Certificate

active

11331086

ABSTRACT:
An optical waveguide device has: photonic crystal regions305, each having holes304arranged in a periodic array; and an optical waveguide302. Within the waveguide302, high refractive index portions303are arranged along the waveguiding direction. Each of the high refractive index portions303is generally interposed between a pair of holes304which are in symmetric positions with respect to the center axis. The center of gravity of every high refractive index portion303is shifted along the waveguiding direction from a midpoint of a line interconnecting centers of the pair of holes304, and is located between a position which is 0.45 r away from the midpoint in the waveguiding direction and a position which is 0.25 r away from the midpoint in the opposite direction, where r is a radius of each hole304.

REFERENCES:
patent: 6465742 (2002-10-01), Hiraoka et al.
patent: 6542654 (2003-04-01), Miller et al.
patent: 6643439 (2003-11-01), Notomi et al.
patent: 6684008 (2004-01-01), Young et al.
patent: 6728457 (2004-04-01), Sigalas et al.
patent: 6853791 (2005-02-01), Sigalas
patent: 6859304 (2005-02-01), Miller et al.
patent: 2002/0009277 (2002-01-01), Noda et al.
patent: 2004/0008945 (2004-01-01), Sigalas
patent: 2004/0008962 (2004-01-01), Sigalas et al.
patent: 2005/0265660 (2005-12-01), Miller
patent: 2006/0029347 (2006-02-01), Sigalas et al.
patent: 62-212632 (1987-09-01), None
patent: 2001-272555 (2001-10-01), None
patent: 2002-350657 (2002-04-01), None
patent: 2002-296628 (2002-10-01), None
patent: 2004-46181 (2004-02-01), None
patent: 2005-274843 (2005-10-01), None
Costa, Martineeli, Melloni, “Ultracompact Photonic Crystal Resonant Filters”, May 2002, Optical Society of America, Quantum Electronics and Laser Science Conference, QELS 2002, pp. 77-78.
Tsai, Chen, Lee, Chang, Chi, “Proposal of a novel method for reduction of propagation loss of photonic crystal waveguides.”□□Dec. 2003, CLEO/Pacific Rim 2003, 5th Pacific Rim Conference on Lasers and Electro-Optics, (IEEE Cat No. 03TH8671) vol. 1, p. 324.
U.S. Appl. No. 11/246,156, filed Oct. 11, 2005, Furuya et al.
John D., Joannopoulos, et al., “Photonic Crystals: Molding the Flow of Light,” 1995, pp. 1-7, 38-53, Princeton University Press, Princeton, New Jersey.
Alongkarn Chutinan, “Waveguides and waveguide bends in two-dimensional photonic crystal slabs,” Physical Review B, Aug. 15, 2000, pp. 4488-4492, vol. 62, No. 7, The American Physical Society.

Affiliated with

Also associated with

Rating

Optical waveguide device 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 waveguide device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical waveguide device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3767801