TY - JOUR AU - M. KARFAA, YASIN AU - ISMAIL, M. AU - ABBOU, F. M. AU - SHAARI, A. S. PY - 2010/09/29 Y2 - 2024/03/29 TI - THEORETICAL EVALUATION OF NONLINEAR EFFECTS ON OPTICAL WDM NETWORKS WITH VARIOUS FIBER TYPES JF - IIUM Engineering Journal JA - IIUMEJ VL - 9 IS - 2 SE - Articles DO - 10.31436/iiumej.v9i2.100 UR - https://journals.iium.edu.my/ejournal/index.php/iiumej/article/view/100 SP - 53-66 AB - A theoretical study is carried out to evaluate the performance of an optical<br />wavelength division multiplexing (WDM) network transmission system in the presence<br />of crosstalk due to optical fiber nonlinearities. The most significant nonlinear effects in<br />the optical fiber which are Cross-Phase Modulation (XPM), Four-Wave Mixing (FWM),<br />and Stimulated Raman Scattering (SRS) are investigated. Four types of optical fiber are<br />included in the analysis; these are: single-mode fiber (SMF), dispersion compensation<br />fiber (DCF), non-zero dispersion fiber (NZDF), and non-zero dispersion shifted fiber<br />(NZDSF). The results represent the standard deviation of nonlinearity induced crosstalk<br />noise power due to FWM and SRS, XPM power penalty for SMF, DCF, NZDF, and<br />NZDSF types of fiber, besides the Bit Error Rate (BER) for the three nonlinear effects<br />using standard fiber type (SMF). It is concluded that three significant fiber nonlinearities<br />are making huge limitations against increasing the launched power which is desired,<br />otherwise, lower values of launched power limit network expansion including length,<br />distance, covered areas, and number of users accessing the WDM network, unless<br />suitable precautions are taken to neutralize the nonlinear effects. Besides, various fiber<br />types are not behaving similarly towards network parameters. ER -