Optimisation of wavelength spacing in a WDM transmission system in the presence of fibre nonlinearities

Author

Yu, A. ; Mahony, M. J O

Author_Institution

Dept. of Electron. Syst. Eng., Essex Univ., Colchester, UK

Volume

142

Issue

4

fYear

1995

fDate

8/1/1995 12:00:00 AM

Firstpage

190

Lastpage

196

Abstract

The paper studies the transmission limitation of wavelength division multiplexing (WDM) optical fibre systems using inline optical amplifiers imposed by fibre nonlinearities in the presence of optical amplifier noise and fibre dispersion. Two main nonlinear effects, namely four-wave mixing (FWM) and stimulated Raman scattering (SRS), are considered, with the emphasis on the FWM effect. Detailed analysis is carried out to evaluate the transmission distance limitation as a function of various system parameters such as wavelength channel spacing, number of channels and amplifier spacing. It is found that to maximise the transmission distance, a compromise needs to be made between conflicting requirements of channel spacing when considering the FWM and SRS effects, respectively. Various techniques to reduce the FWM impairments are also discussed

Keywords

multiwave mixing; optical fibre communication; optical fibre dispersion; optical noise; stimulated Raman scattering; wavelength division multiplexing; SRS; SRS effects; WDM optical fibre systems; WDM transmission system; amplifier spacing; fibre dispersion; fibre nonlinearities; four-wave mixing; inline optical amplifiers; optical amplifier noise; optimisation; stimulated Raman scattering; system parameters; transmission distance limitation; transmission limitation; wavelength channel spacing; wavelength spacing;

fLanguage

English

Journal_Title

Optoelectronics, IEE Proceedings -

Publisher

iet

ISSN

1350-2433

Type

jour

DOI

10.1049/ip-opt:19952070

Filename

465212