Optical waveguides – Having nonlinear property
Reexamination Certificate
2008-07-01
2008-07-01
Pak, Sung (Department: 2874)
Optical waveguides
Having nonlinear property
Reexamination Certificate
active
07394958
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: 6064506 (2000-05-01), Koops
patent: 6243517 (2001-06-01), Deacon
patent: 6411752 (2002-06-01), Little et al.
patent: 6643439 (2003-11-01), Notomi et al.
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: 7197059 (2007-03-01), Takeuchi
patent: 7245801 (2007-07-01), Boyd
patent: 7263262 (2007-08-01), Covey
patent: 2003/0053774 (2003-03-01), Blomquist et al.
patent: 2003/0231826 (2003-12-01), Boyd et al.
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: 2007/0189704 (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. 11/354,601, dated Dec. 18, 2006.
Office Communication from corresponding U.S. Appl. No. 11/354,601, dated Apr. 23, 2007.
Office Communication from corresponding U.S. Appl. No. 11/354,601, dated Oct. 5, 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. 11/354,735, dated Jul. 12, 2007.
Office Communication from corresponding U.S. Appl. No. 11/354,735, dated Oct. 31, 2006.
Alston & Bird LLP
Coveytech LLC
Pak Sung
Smith Chad H
LandOfFree
All-optical logic gates using nonlinear elements-claim set II 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 elements-claim set II, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and All-optical logic gates using nonlinear elements-claim set II will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2813412