Optical: systems and elements – Optical frequency converter – Dielectric optical waveguide type
Reexamination Certificate
2008-08-14
2011-10-04
Bolda, Eric (Department: 3663)
Optical: systems and elements
Optical frequency converter
Dielectric optical waveguide type
C359S330000, C359S344000
Reexamination Certificate
active
08031394
ABSTRACT:
A wavelength conversion system includes a Mach-Zehnder interferometer including two optical waveguides, a non-linear medium provided on one of the two optical waveguides, and a branching ratio adjuster for adjusting the branching ratio of multiplexed light produced by multiplexing signal light and pumping light so that the powers of the signal light and the pumping light which are to be emitted from the two optical waveguides are equal to each other. The multiplexed light whose branching ratio is adjusted by the branching ratio adjuster is introduced into the two optical waveguides such that the non-linear medium generates phase conjugation light of the signal light and the light guided through the one optical waveguide and the light guided through the other one of the two optical waveguides interfere with each other so that the phase conjugation light is extracted as wavelength conversion light.
REFERENCES:
patent: 4775215 (1988-10-01), Teng et al.
patent: 5619368 (1997-04-01), Swanson
patent: 5920588 (1999-07-01), Watanabe
patent: 6188511 (2001-02-01), Marcenac et al.
patent: 6344921 (2002-02-01), Galvanauskas et al.
patent: 6453082 (2002-09-01), Watanabe
patent: 6477300 (2002-11-01), Watanabe et al.
patent: 6522462 (2003-02-01), Chu et al.
patent: 6542286 (2003-04-01), Kuwatsuka
patent: 6608854 (2003-08-01), Watanabe
patent: 6853774 (2005-02-01), Watanabe
patent: 6867903 (2005-03-01), Imajuku et al.
patent: 7012740 (2006-03-01), Imajuku et al.
patent: 7072549 (2006-07-01), Watanabe
patent: 7130112 (2006-10-01), Morito
patent: 2001/0031110 (2001-10-01), Imajuku et al.
patent: 2003/0063860 (2003-04-01), Watanabe
patent: 2004/0136050 (2004-07-01), Takagi
patent: 2005/0094249 (2005-05-01), Imajuku et al.
patent: 0 774 810 (1997-05-01), None
patent: 1184715 (2002-03-01), None
patent: 1255157 (2002-11-01), None
patent: 2000-250081 (2000-09-01), None
patent: 2002-182256 (2002-06-01), None
patent: 2004-185021 (2004-07-01), None
patent: WO 99/25081 (1999-05-01), None
patent: WO 0142848 (2000-11-01), None
Durhuus et al. “All Optical Wavelength Conversion by SOA's in a Mach-Zehnder Configuration”, IEEE Photonics Technology Letters, vol. 6, No. 1, pp. 53-55 (Jan. 1994).
Razzari, L. et al; “Wavelength Conversion and Pulse Reshaping through Cascaded Interaction in an MZI Configuration”; IEEE Journal of Quantum Eletronics; vol. 39, No. 11; Nov. 2003; pp. 1486-1491.
Communication from the European Patent Office, showing date Nov. 7, 2007.
Kuwatsuka Haruhiko
Otsubo Koji
Bolda Eric
Fujitsu Limited
Kratz Quintos & Hanson, LLP
LandOfFree
Wavelength conversion system, optical integrated device and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Wavelength conversion system, optical integrated device and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wavelength conversion system, optical integrated device and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4277036