Nazlı Ergüney, Bahadır Hiçdurmaz, Sait Eser Karlık, Güneş Yılmaz

Dalga Boyu Bölmeli Çoğullama Sistemlerinde Dört Dalga Karışımı Olayının İletim Performansına Etkisinin Analizi

Nonlinear phenomena cause distortions and attenuations on signals transmitted in an optical fiber. Four-wave mixing (FWM) of these phenomena is one of the most important reasons for nonlinear crosstalk in wavelength division multiplexing (WDM) systems. Amplifiers used for extending the transmission distance of WDM systems increase the FWM effect and therefore the performance of long-haul communication systems is negatively affected. In this study, parameters affecting FWM in WDM communication systems and effects of FWM on transmission performance are analyzed for G.652 step-index single mode optical fiber. In simulations performed, the level of FWM noise power for different values of channel spacing, the effect of channel power variation on first and second order FWM crosstalk, the variation of FWM power with respect to different values of transmission distance and chromatic dispersion, the relation of FWM efficiency and transmission distance and the effect of FWM noise on signal to noise ratio (SNR) are investigated.

Keywords:

FWM, WDM, optical fiber, SNR,

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[1] G. Kaur and M. L. Singh, Effect of four-wave mixing in WDM optical fibre systems, OptikInternational Journal for Light and Electron Optics 120 (2009), 268–273.
[2] P. B. Harboe, E. Silva and J. R. Souza, Analysis of FWM penalties in DWDM systems based on G.652, G.653 and G.655 optical fibers, Proceedings of World Academy of Science Engineering and Technology 48 (2008), 77–83.
[3] T. Schneider, Nonlinear Optics in Telecommunications, Springer-Verlag, Berlin Hidelberg 2004.
[4] G. P. Agrawal, Nonlinear Fiber Optics, Academic Press, New York 2001.
[5] G. P. Agrawal, Applications of Nonlinear Fiber Optics, Academic Press, New York 2001.
[6] F. Forghieri, R. W. Tkach and A. R. Chraplyvy, WDM systems with unequally spaced channels, Journal of Lightwave Technology 13 (1995), 889–897.
[7] S. Song, Higher-order four-wave mixing and its effect in WDM systems, Optics Express 7 (2000), 166–171.
[8] M. W. Maeda, W. B. Sessa, W. I. Way, A. Yi-Yan, L. Curtis, R. Spicer and R. I. Laming, The effect of four-wave mixing in fibers on optical frequency-division multiplexed systems, Journal of Lightwave Technology 8 (1990), 1402–1408.