Optical: systems and elements – Optical amplifier – Particular active medium
Reexamination Certificate
2006-10-17
2006-10-17
Keith, Jack (Department: 3663)
Optical: systems and elements
Optical amplifier
Particular active medium
C359S108000
Reexamination Certificate
active
07123407
ABSTRACT:
The present invention relates to an apparatus and a method for realizing all-optical NOR logic device using the gain saturation characteristics of a semiconductor optical amplifier(SOA). More particularly, the invention relates to a 10 Gbit/s all-optical NOR logic device among all-optical logic devices, in which a signal transmitted from a given point of an optical circuit such as an optical computing circuit is used as a pump signal and a probe signal.The method for realizing an all-optical NOR logic device using the gain saturation characteristics of the SOA according to the present invention comprises the steps of: utilizing A+B signal which couples together an input signal pattern A (1100) and an input signal pattern B (0110) as a pump signal (1110); utilizing a probe signal (1111) by generating a clock signal out of said input signal pattern A (1100); and obtaining a Boolean equation {overscore (A+B)} by making said probe signal and said pump signal incident upon the SOA simultaneously from the opposite direction.The all-optical logic device according to the present invention has a simple construction since it is realized through the XGM (Cross Gain Modulation) method which utilizes the gain saturation characteristics. Also, it is expected that the method employed in the present invention could be used for realizing other all-optical logic circuits and devices.
REFERENCES:
patent: 4932739 (1990-06-01), Islam
patent: 4999688 (1991-03-01), Hara et al.
patent: 5020050 (1991-05-01), Islam
patent: 5537243 (1996-07-01), Fatehi et al.
patent: 5704015 (1997-12-01), Ono
patent: 5999283 (1999-12-01), Roberts et al.
patent: 5999284 (1999-12-01), Roberts
patent: 6128110 (2000-10-01), Bulow
patent: 6219160 (2001-04-01), Nordal et al.
patent: 6424438 (2002-07-01), Byun et al.
patent: 6462865 (2002-10-01), Chu et al.
patent: 6522462 (2003-02-01), Chu et al.
patent: 6624929 (2003-09-01), Kim et al.
patent: 6647163 (2003-11-01), Song
patent: 6778303 (2004-08-01), Song
patent: 6801349 (2004-10-01), Kim et al.
patent: 6804047 (2004-10-01), Byun et al.
patent: 6822591 (2004-11-01), Kim et al.
patent: 6853658 (2005-02-01), DiJaili et al.
patent: 6930826 (2005-08-01), Kim et al.
patent: 6943925 (2005-09-01), Islam
patent: 6952172 (2005-10-01), Bhardwaj et al.
patent: 6987607 (2006-01-01), Watanabe
patent: 6990281 (2006-01-01), Shahar et al.
patent: 7053359 (2006-05-01), Ponomarenko
patent: 2002/0001112 (2002-01-01), Song
patent: 2002/0154350 (2002-10-01), Johnson et al.
patent: 2003/0002797 (2003-01-01), Chu et al.
patent: 2003/0058527 (2003-03-01), Kim et al.
patent: 2003/0058528 (2003-03-01), Byun et al.
patent: 2003/0090784 (2003-05-01), Kim et al.
patent: 2004/0125426 (2004-07-01), McAulay
patent: 2004/0174600 (2004-09-01), Westphal
patent: 2006/0092501 (2006-05-01), Byun et al.
Ali Hamié, Ammar Sharaiha, Mikael Guégan, and Benoît Pucel. All-Optical Logic NOR Gate Using Two-Cascaded Semiconductor Optical Amplifiers. IEEE Photonics Technology Letters, vol. 14, No. 10, Oct. 2002. pp. 1439-1441.
A. Sharaiha, H.W. Li, F. Marchese and J. Le Bihan. All-optical logic NOR gate using a semiconductor laser amplifier. Electronics Letters Feb. 13, 1997 vol. 33 No. 4. pp. 323-325.
Byun Young Tae
Jhon Young Min
Kim Jae Hun
Kim Sun Ho
Lee Seok
Diacou Ari M
Harness Dickey & Pierce PLC
Keith Jack
Korea Institute of Science and Technology
LandOfFree
Apparatus and method for realizing all-optical NOR logic... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for realizing all-optical NOR logic..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for realizing all-optical NOR logic... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3618062