Electrical filtering strategies to compensate waveform distortion in optically amplified IM/DD systems

Author

Zhou, Y.R. ; Watkins, L.R. ; Hornsby, J.S.

Author_Institution

Sch. of Electron. Eng. & Comput. Syst., Univ. of Wales, Bangor, UK

Volume

144

Issue

2

fYear

1997

fDate

4/1/1997 12:00:00 AM

Firstpage

75

Lastpage

82

Abstract

Postdetection filtering strategies are investigated as a means of compensating the waveform distortion caused by the combined effect of chromatic dispersion and self-phase-modulation in intensity modulated, direct detection (IM/DD) systems. A design technique based on realisable filter models and a rigorous performance evaluation is introduced. In addition, a method of finding the theoretical optimum filter is given, providing a measure of the achievable system performance and the efficacy of the various filtering strategies. It is shown that the optimised postdetection filtering is effective in reducing the system power penalty, and the relative merits of different filters are quantified. The optimised filters are also shown to be tolerant to various system impairments. Such as noise, timing jitter and perturbation of filter parameters

Keywords

compensation; fibre lasers; filtering theory; jitter; optical fibre communication; optical fibre losses; optical modulation; optical noise; chromatic dispersion; electrical filtering strategies; filter parameters; intensity modulated; optically amplified IM/DD systems; optimised postdetection filtering; postdetection filtering strategies; realisable filter models; rigorous performance evaluation; self-phase-modulation; system power penalty; theoretical optimum filter; timing jitter; waveform distortion compensation;

fLanguage

English

Journal_Title

Optoelectronics, IEE Proceedings -

Publisher

iet

ISSN

1350-2433

Type

jour

DOI

10.1049/ip-opt:19970753

Filename

590325