All-optical logic gates using nonlinear...

Details All-optical logic gates using nonlinear... All-optical logic gates using nonlinear...

2008-05-08

2008-12-09

Doan, Jennifer (Department: 2874)

Optical waveguides

Having nonlinear property

C359S328000

Reexamination Certificate

active

07463804

ABSTRACT:
An all-optical logic gates comprises a nonlinear element such as an optical resonator configured to receive optical input signals, at least one of which is amplitude-modulated to include data. The nonlinear element is configured in relation to the carrier frequency of the optical input signals to perform a logic operation based on the resonant frequency of the nonlinear element in relation to the carrier frequency. Based on the optical input signals, the nonlinear element generates an optical output signal having a binary logic level. A combining medium can be used to combine the optical input signals for discrimination by the nonlinear element to generate the optical output signal. Various embodiments include all-optical AND, NOT, NAND, NOR, OR, XOR, and XNOR gates and memory latch.

REFERENCES:
patent: 4196426 (1980-04-01), Ogawa
patent: 4701030 (1987-10-01), Jewell
patent: 4718063 (1988-01-01), Reedy
patent: 5001523 (1991-03-01), Lomashevich et al.
patent: 5076672 (1991-12-01), Tsuda et al.
patent: 5134624 (1992-07-01), Ono
patent: 5434426 (1995-07-01), Furuyama
patent: 6243517 (2001-06-01), Deacon
patent: 6643439 (2003-11-01), Notomi et al.
patent: 6876689 (2005-04-01), Walling
patent: 6937781 (2005-08-01), Shirane et al.
patent: 6937804 (2005-08-01), McCoy et al.
patent: 6987607 (2006-01-01), Watanabe
patent: 7065109 (2006-06-01), Bacher
patent: 7072549 (2006-07-01), Watanabe
patent: 7085029 (2006-08-01), Romaniuk
patent: 7197059 (2007-03-01), Takeuchi
patent: 7245801 (2007-07-01), Boyd
patent: 7263262 (2007-08-01), Covey
patent: 7280766 (2007-10-01), Watanabe
patent: 2004/0033009 (2004-02-01), Soljacic et al.
patent: 2005/0157974 (2005-07-01), Scherer
patent: 2005/0163419 (2005-07-01), Scherer
patent: 2005/0259999 (2005-11-01), Covey
patent: 2007/0189665 (2007-08-01), Covey
patent: 2007/0189680 (2007-08-01), Covey
patent: 2007/0189703 (2007-08-01), Covey
patent: 2007/0189705 (2007-08-01), Covey
patent: 2007/0248124 (2007-10-01), Covey
patent: 3002845 (1991-01-01), None
Notomi M. et al., “Si-based photonic crystals and photonic band-gap waveguides,” Proceedings of the SPIE, SPIE, Bellingham, VA, US, vol. 4655, 2002, pp. 92-104, XP002275070, Japan.
International Search Report from corresponding International Application No. PCT/US06/046507 dated Mar. 30, 2007.
Communication pursuant to Article 96(2) EPC from corresponding European Application No. 04 822 328.3 -2205 dated Apr. 8, 2007.
Communication issued by the EPO for European Patent Application No. 04822328.3 dated Sep. 17, 2007.
Office communication from corresponding U.S. Appl. No. 11/354,731 dated Feb. 2, 2007.
Office communication from corresponding U.S. Appl. No. 11/354,468 dated Mar. 21, 2007.
Office communication from corresponding U.S. Appl. No. 11/354,468 dated May 29, 2007.
Office communication from corresponding U.S. Appl. No. 11/354,468 dated Oct. 17, 2007.
Office communication from corresponding U.S. Appl. No. 11/354,735 dated Jun. 15, 2006.
Office communication from corresponding U.S. Appl. No. 11/354,734 dated Jul. 12, 2007.
Office communication from corresponding U.S. Appl. No. 11/354,735 dated Oct. 31, 2006.
Office communication from corresponding U.S. Appl. No. 11/354,731 dated Jul. 12, 2007.
International Preliminary Report on Patentability from corresponding International Application No. PCT/US2006/046507 received Feb. 18, 2008.
Office Communication from corresponding U.S. Appl. No. 11/354,731 dated Nov. 15, 2007.

Affiliated with

Also associated with

Rating

All-optical logic gates using nonlinear... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with All-optical logic gates using nonlinear..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and All-optical logic gates using nonlinear... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4030566