Optical communications – Transmitter and receiver system – Including synchronization
Reexamination Certificate
2005-12-23
2009-12-01
Sedighian, M. R (Department: 2613)
Optical communications
Transmitter and receiver system
Including synchronization
C398S147000, C398S159000
Reexamination Certificate
active
07627252
ABSTRACT:
A method of recovering a clock signal from an optical signal received through an optical communications system. A digital sample stream is processed to generate a dispersion compensated signal. The dispersion compensated signal is then tapped to obtain upper side band and lower side band signals of each received polarization of the optical signal. The upper side band and lower side band signals are then processed to compensate polarization dependent impairments, and the clock recovered from the resulting optimized.
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Bontu Chandra
Jovanovic Slobodan
Roberts Kim B
Sun Han
Wu Kuang Tsan
Nortel Networks Limited
Pearne & Gordon LLP
Sedighian M. R
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