System and method for reducing interference in an optical...

Details System and method for reducing interference in an optical... System and method for reducing interference in an optical...

2003-05-29

2009-06-09

Li, Shi K (Department: 2613)

Optical communications

Receiver

Including postcompensation

Reexamination Certificate

active

07546042

ABSTRACT:
A method of reducing interference in a data stream includes filtering the data stream using a first equalizer to output a first filtered data stream. Also, the data stream is filtered using a second equalizer to create a second filtered data stream. Then, one or more error rates based on the first filtered data stream and the second filtered data stream are determined. Based at least in part on those error rates, a filtered data stream is selected from among the first filtered data stream and the second filtered data stream. A threshold value is determined, and then compared against the selected filtered data stream to generate a data bit.

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I. Shake et al., “Averaged Q-Factor Method Using Amplitude Histogram Evaluation for Transparent Monitoring of Optical Signal-to-Noise Ratio Degradation in Optical Transmission System”, Journal of Lightwave Technology, vol. 20, No. 8, Aug. 2002.

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