Impact of physical effects onto the optimal signal power in CWDM optical networks

Nowadays in optical networks there is a trend to extend the maximum transmission distance. Several technical solutions are known but the simplest one is to increase the signal power in the optical fiber. However, the nonlinear behavior of the optical fiber limits the signal power e.g. the span of th...

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Bibliographic Details
Published in2008 6th International Symposium on Communication Systems, Networks and Digital Signal Processing pp. 428 - 432
Main Authors Szabo, A., Zsigmond, S., Cinkler, T.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.07.2008
Subjects
Chromatic dispersion
Coarse wavelength-division-multiplexing (CWDM)
dense wavelength-division-multiplexing (DWDM)
Dispersion
group velocity dispersion (GVD)
Noise
Optical fiber dispersion
Optical transmitters
Q factor
relative intensity noise (RIN)
stimulated Raman-scattering (SRS)
Wavelength division multiplexing
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Summary:Nowadays in optical networks there is a trend to extend the maximum transmission distance. Several technical solutions are known but the simplest one is to increase the signal power in the optical fiber. However, the nonlinear behavior of the optical fiber limits the signal power e.g. the span of the all-optical network. This paper presents an analytical model and calculation results for the signal quality degradation in an 8-channel and an 18-channel, 2.5 Gbps coarse wavelength-division- multiplexing (CWDM) system. Based on the proposed model and performed analysis we give the optimal value of the signal power at the transmitter point.
ISBN:1424418755
9781424418756
DOI:10.1109/CSNDSP.2008.4610797