Adaptive equalization in coherent fiber optic communication

Optical communications – Receiver – Including postcompensation

Reexamination Certificate

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C398S149000, C398S202000, C398S205000, C398S140000

Reexamination Certificate

active

08041233

ABSTRACT:
An embodiment of the invention is a technique to equalize received samples. A coefficient generator generates filter coefficients using a rotated error vector. A filter stage generates equalized samples or slicer input vector from received samples or rotated received samples using the filter coefficients. The received samples are provided by a receiver front end in an optical transmission channel carrying transmitted symbols.

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