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1 Gbit/s integrate-and-dump filter for digital communication systems

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2 Author(s)
C. R. Giles ; AT&T Bell Labs., Crawford Hill Labs., Holmdel, NJ, USA ; J. M. Kahn

An integrate-and-dump filter operating at 1 Gbit/s has been demonstrated. For NRZ signal pulses, noise filtering with the I&D circuit the same error rate performance as an 800 MHz lowpass filter. Unlike the lowpass filter, the I&D filter can reduce the degradation caused by certain kinds of timing jitter, and introduces no intersymbol interference. This I&D filter was built to reduce the effect of signal-pulse jitter in a zero-IF coherent optical transmission experiment.

Published in:

Electronics Letters  (Volume:25 ,  Issue: 3 )