Optical waveguides – Integrated optical circuit
Reexamination Certificate
2005-01-11
2005-01-11
Healy, Brian M. (Department: 2883)
Optical waveguides
Integrated optical circuit
C385S002000, C385S003000, C385S040000, C385S041000, C398S081000, C398S082000
Reexamination Certificate
active
06842547
ABSTRACT:
An integrated chromatic dispersion compensator for optical signals in optical communication networks, comprising a plurality of cascaded stages of optical dispersion elements arranged in the form of a lattice filter structure, is characterized by at least one tapping device disposed between consecutive stages of the optical dispersion elements for tapping inter stage signals, feeding each tapped inter stage signal into a separate feedback loop, which in turn is feeding adaptation parameters into at least one of the stages of the optical dispersion elements preceding the corresponding tapping device of the inter stage signal. The invention presents a compact dispersion compensator that can dynamically be adapted to varying dispersion situations and that is capable of compensating the chromatic dispersion of a multitude of data channels at the same time.
REFERENCES:
patent: 4588255 (1986-05-01), Tur et al.
patent: 4768850 (1988-09-01), Moslehi et al.
patent: 5526439 (1996-06-01), Bergmann
patent: 6400870 (2002-06-01), Hill et al.
patent: 6687461 (2004-02-01), MacFarlane et al.
patent: 20010021940 (2001-09-01), Fujii et al.
patent: 20030103723 (2003-06-01), Bohn et al.
patent: 20030179972 (2003-09-01), Gerlach et al.
patent: 0 997 751 (2000-05-01), None
OFC 2002, Optical Fiber Communication Conference and Exhibit, Mar. 17-22, 2002, Anaheim, California, Technical Digest.
Koichi Takiguchi, “Planar Lightwave Circuit Dispersion Equalizer”, Journal of Lightwave Technology, vol. 14, No. 9, Sep. 1966, pp. 2003-2011.
USSN 10/715,557 filed Nov. 19, 2003.
Takiguchi K et al: “Dispersion Slope Equalizer for Dispersion Shifted Fiber Using a Lattice-Form Programmable Optical Filter on a Planar Lightwave Circuit” Journal of Lightwave Technology, IEEE. New York, US, vol. 16, No. 9, Sep. 1, 1998, pp. 1647-1656, XP000786638.
Patent Abstracts of Japan vol. 018, No. 106 (P-1697), Feb. 21, 1994 & JP 05 303019 A (Nippon Telegr & Teleph Corp), Nov. 16, 1993.
Healy Brian M.
Sughrue & Mion, PLLC
LandOfFree
Adaptive chromatic dispersion compensator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Adaptive chromatic dispersion compensator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adaptive chromatic dispersion compensator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3371286