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Chromatic Dispersion Compensation Using Digital IIR Filtering With Coherent Detection

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2 Author(s)
Goldfarb, G. ; Central Florida Univ., Orlando ; Guifang Li

Digital infinite impulse response (IIR) filtering is proposed as a means for compensating chromatic dispersion in homodyne-detected optical transmission systems with subsequent digital signal processing. Compared to finite impulse response (FIR) filtering, IIR filtering achieves dispersion compensation (DC) using a significantly smaller number of taps. DC of 80 and 160 km in a 10-Gb/s binary phase-shift-keying is experimentally compared for the two filtering schemes. IIR filtering can achieve performance similar to the FIR filtering scheme.

Published in:

Photonics Technology Letters, IEEE  (Volume:19 ,  Issue: 13 )