Title :
Impact of physical effects onto the optimal signal power in CWDM optical networks
Author :
Szabó, Áron ; Zsigmond, Szilárd ; Cinkler, Tibor
Author_Institution :
Dept. of Telecommun. & Media Inf, Budapest Univ. of Technol. & Econ., Budapest
Abstract :
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.
Keywords :
nonlinear optics; optical fibre networks; optical transmitters; wavelength division multiplexing; CWDM optical networks; all-optical network; bit rate 2.5 Gbit/s; coarse wavelength-division-multiplexing system; optical fiber; optimal signal power; signal power; All-optical networks; Analytical models; Degradation; Optical fiber networks; Optical fibers; Optical transmitters; Performance analysis; Power system modeling; Signal analysis; WDM networks; Coarse wavelength-division-multiplexing (CWDM); Q-factor; dense wavelength-division-multiplexing (DWDM); group velocity dispersion (GVD); relative intensity noise (RIN); stimulated Raman-scattering (SRS);
Conference_Titel :
Communication Systems, Networks and Digital Signal Processing, 2008. CNSDSP 2008. 6th International Symposium on
Conference_Location :
Graz
Print_ISBN :
978-1-4244-1875-6
Electronic_ISBN :
978-1-4244-1876-3
DOI :
10.1109/CSNDSP.2008.4610797
