Optical crosstalk predictions for LED based analogue WDM systems

Author

Murtaza, G. ; Senior, J.M.

Author_Institution

Dept. of Electr. & Electron. Eng., Manchester Metropilatan Univ., UK

Volume

142

Issue

5

fYear

1995

fDate

10/1/1995 12:00:00 AM

Firstpage

225

Lastpage

231

Abstract

An analytical framework is advanced for the prediction of linear optical crosstalk levels in LED based wavelength division multiplexed (WDM) systems by assuming both the spectral emission from LED devices and the transmission of optical filtering elements as being Gaussian distributed. Mathematical expressions are provided which allow calculation of crosstalk levels for systems having wavelength channels addressed by using separate LED sources and those extracted by using spectral slicing techniques. These expressions enable the design of a WDM system optimised for spectral bandwidths λ_w and wavelength separations Δ between the channels for any desired crosstalk level C. These quantities are found to be related through the expression C≃-6(Δ/λ_w)² which can be used either to assess or predict the potential crosstalk performance of a WDM system

Keywords

demultiplexing; light emitting diodes; optical crosstalk; optical fibre networks; optimisation; wavelength division multiplexing; Gaussian distributed; LED based analogue WDM systems; LED based wavelength division multiplexed systems; WDM system; WDM system design optimisation; analytical framework; crosstalk level; crosstalk levels; crosstalk performance; linear optical crosstalk levels; optical crosstalk predictions; optical filtering elements; spectral bandwidths; spectral emission; spectral slicing techniques; wavelength channels; wavelength separations;

fLanguage

English

Journal_Title

Optoelectronics, IEE Proceedings -

Publisher

iet

ISSN

1350-2433

Type

jour

DOI

10.1049/ip-opt:19952130

Filename

475296