Influence of adjacent channel interference on the frequency-modulated WDM optical communication system

Author

Bhattacharya, Madhumita ; Chattopadhyay, Taraprasad

Author_Institution

Dept. of Phys., Visva-Bharati Univ., Santiniketan, India

Volume

17

Issue

12

fYear

1999

fDate

12/1/1999 12:00:00 AM

Firstpage

2516

Lastpage

2519

Abstract

The effect of adjacent channel interference on the frequency modulated wavelength division multiplexing (FM-WDM) optical communication system is analyzed in this paper. This system uses injection-locked optical discriminator at the output for the demodulation of FM channels. Adjacent channel interference results in crosstalk in the FM-WDM communication system which has been calculated. Dependence of crosstalk on the channel spacing, received signal power in a particular channel, and linewidth enhancement factor of the slave laser incorporated in the optical discriminator has been numerically investigated. The injection-locked discriminator has a typical output crosstalk level of -50 dB for a channel spacing of 100 GHz with optical injection level of -30 dB into the slave laser and is a suitable subsystem to be used in FM-WDM communication system

Keywords

adjacent channel interference; demodulation; frequency modulation; optical crosstalk; optical fibre communication; wavelength division multiplexing; FM channel demodulation output; FM-WDM communication system; adjacent channel interference; channel spacing; crosstalk; frequency-modulated WDM optical communication system; injection-locked discriminator; injection-locked optical discriminator; linewidth enhancement; output crosstalk level; received signal power; slave laser; Channel spacing; Demodulation; Frequency modulation; Interchannel interference; Optical crosstalk; Optical fiber communication; Optical frequency conversion; Optical modulation; Power lasers; Wavelength division multiplexing;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.809671

Filename

809671