Broadband control of polarization mode dispersion

Optical communications – Transmitter and receiver system – Including optical waveguide

Reexamination Certificate

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C398S158000, C398S148000, C398S149000, C398S161000, C398S152000, C398S081000, C398S065000, C398S079000, C398S159000, C385S011000, C356S073100

Reexamination Certificate

active

10209904

ABSTRACT:
A method and system is provided for compensating polarization mode dispersion (PMD) in an optical communications system includes a controller designed to control a broadband PMD compensator to differentially delay light at each one of a plurality of selected wavelengths. At least one of the selected wavelengths lies between an adjacent pair of channel wavelengths of the optical communications system. A performance parameter value indicative of PMD is measured at each channel wavelength of the optical communications system. An estimated performance parameter value is then calculated at each selected wavelength, and an error function calculated as a function of wavelength based on the estimated performance parameter values. The broadband PMD compensator is then controlled to minimize the value of the error function.

REFERENCES:
patent: 5473457 (1995-12-01), Ono
patent: 5949560 (1999-09-01), Roberts et al.
patent: 6104515 (2000-08-01), Cao
patent: 6130766 (2000-10-01), Cao
patent: 6240748 (2001-06-01), Henderson et al.
patent: 6603890 (2003-08-01), Khosravani et al.
patent: 6801721 (2004-10-01), Madsen
patent: 6907199 (2005-06-01), Koch et al.
patent: 2004/0208618 (2004-10-01), Roberts et al.
patent: WO 01/86840 (2001-05-01), None
“Component for Second-Order Compensation of Polarization-Mode Dispersion” Jul. 9, 1997, Jörn Patscher and Ralf Eckhardt.
“Long-Term Measurement of PMD and Polarization Drift in Installed Fibers” Magnus Karlsson, Jonas Brentel, and Peter A. Andrekson, Member, IEEE Journal of Lightwave Technology, vol. 18, No. 7, Jul. 2000, p. 941.
“Temporal Dynamics of Error-Rate Degradation Induced by Polarisation Mode Dispersion Fluctuation of a Field Fiber Link”, 1997 Henning Bülow and Gustave Veith Alcatel Telecom Research Division, Alcatel SEL AG, Dept. ZFZ/NO—D-70430 Stuttgart, Germany.
“Polarization eigenmodes of a QHQ retarder—some new features” Rajendra Bhandari, Gordon D. Love Optics Communications 110 (1994) 479-484.
“Optical properties of a QHQ ferroelectric liquid crystal phase modulator” Gordon D. Love, Rajendra Bhandari Optics Communications 110 (1994) 475-478.
“Adaptive Optical Components Using Liquid Crystal Devices” Gordon D. Love Journal of the Communications Research Laboratory, Nov. 1999, vol. 46 No. 3, pp. 427-430.

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