Disperse equalizer and disperse equalizing method

Details Disperse equalizer and disperse equalizing method Disperse equalizer and disperse equalizing method

2007-11-27

2007-11-27

Leung, Christina (Department: 2613)

Optical communications

Transmitter and receiver system

Including optical waveguide

C398S029000

Reexamination Certificate

active

10471368

ABSTRACT:
If no alarm is input from an optical receiver, an FEC decoder, or a client signal monitor, a control circuit controls a variable dispersion equalizer such that a transmission error becomes smaller using information on the number of error corrections obtained from the FEC decoder and fixes a dispersion equalization value in the event that the error becomes equal to or lower than a specified value. If the alarm information is input, the control circuit switches control over the variable dispersion equalizer from an ordinary control to a search mode control for searching an optimal dispersion equalization value in a wide range to thereby search the optimal dispersion equalization value at a higher speed.

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