Optical communications – Multiplex – Polarization
Reexamination Certificate
2006-12-22
2010-06-29
Singh, Dalzid (Department: 2613)
Optical communications
Multiplex
Polarization
C398S152000, C398S158000, C398S192000, C398S202000, C398S205000
Reexamination Certificate
active
07747169
ABSTRACT:
A method for operating an optical receiver includes at each of a sequence of sampling times, producing a first 2D complex digital signal vector whose first component is indicative of a phase and amplitude of one polarization component of a modulated optical carrier and whose second component is indicative of a phase and amplitude of another polarization component of the carrier. For each one of the sampling times, the method includes constructing a second 2D complex digital signal vector that is a rotation of the first 2D complex digital vector for the one of sampling times. The rotation compensates a polarization rotation produced by transmission of the modulated optical carrier between an optical transmitter and the optical receiver.
REFERENCES:
patent: 6782211 (2004-08-01), Core
patent: 6917031 (2005-07-01), Sun et al.
patent: 7315575 (2008-01-01), Sun et al.
patent: 2004/0114939 (2004-06-01), Taylor
patent: 2007/0036555 (2007-02-01), Chen et al.
patent: 2007/0110362 (2007-05-01), Shpantzer et al.
PCT International Search Report dated May 15, 2008 (PCT/US2007/025214) 3 pages.
Reinhold Noe, “Phase Noise-Tolerant Synchronous QPSK/BPSK Baseband-Type Intradyne Receiver Concept With Feedforward Carrier Recovery”, Journal of Lightwave Technology, vol. 23., No. 2, Feb. 2005, pp. 802-808.
Yan Han and Guifang Li, “Coherent Optical Communication Using Polarization Multiple-Input-Multiple-Output”, Optics Express, Sep. 19, 2005 / vol. 13, No. 19, pp. 7527-7534.
Andreas Leven, et al, “Frequency Estimation in Intradyne Reception,”IEEE Photonics Technology Letters, vol. 19, No. 6, Mar. 15, 2007, pp. 366-368.
U.S. Appl. No. 11/426,191, filed Jun. 23, 2006, N. Kaneda, et al.
U.S. Appl. No. 11/483,280, filed Jul. 7, 2006, U-V. Koc.
U.S. Appl. No. 11/644,536, filed Dec. 22, 2006, Y.K Chen, et al.
F. Derr, “Optical QPSK Transmission System With Novel Digital Receiver Concept,”Electronics Letters, vol. 27, No. 23, pp. 2177-2179, Nov. 7, 1991.
U-V. Koc, et al, “Digital Coherent Quadrature Phase-Shift-Keying (QPSK),” inProc. Optical Fiber Conference and the 2006 National Fiber Optic Engineers Conference(OFC), Anaheim, CA, Mar. 5-10, 2006, 3 pages.
D-S, Ly-Gagnon, et al, “Coherent Detection of Optical Quadrature Phase-Shift Keying Signals With Carrier Phase Estimation,”Journal of Lightwave Technology, vol. 24, No. 1, Jan. 2006, pp. 12-21.
T. Pfau, et al, “First Real-Time Data Recovery for Synchronous QPSK Transmission With Standard DFB Lasers,”IEEE Photonics Technology Letters, vol. 18, No. 18, Sep. 15, 2006, pp. 1907-1909.
M.G. Taylor, “Accurate Digital Phase Estimation Process for Coherent Detection Using a Parallel Digital Processor,”in Proc. European Conference, Optical Communication, ECOC 2005 Proceedings—vol. 2, Glasgow, UK., pp. 263-264.
H. Meyr, et al,Digital Communication Receivers, Synchronization, Channel Estimation, and Signal Processing, John Wiley & Sons, Inc., New York, 1998 ch. 8.2.2., pp. 457-463.
Alcatel-Lucent USA Inc.
McCabe John F.
Singh Dalzid
LandOfFree
Adaptive polarization tracking and equalization in coherent... 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 polarization tracking and equalization in coherent..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adaptive polarization tracking and equalization in coherent... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4245601