%0 Journal Article
%T Dense Wavelength Division Multiplexing Optical Network System
%A Md. Masud Rana
%J International Journal of Electrical and Computer Engineering
%D 2012
%I 
%R 10.11591/ijece.v2i2.202
%X In this paper, a dense wavelength division multiplexing (DWDM) system with 64 modulated channels 50 GHz spacing covering 25.2-nm bandwidth has been demonstrated. When optical signals are to travel over long distances, it¡¯s be faded and spread out. So, it is necessary to strengthen the signal at intervals. To keep the signal strength at same level in the DWMD system, Er-doped fiber amplifier (EDFA) has been used. The EDFA provides a gain across the bandwidth with 10 dB average gain and a gain shape variation peak-to-peak of about 1 dB. OptSim¡¯s physical EDFA model has been used for DWMD systems.
%U http://www.iaesjournal.com/online/index.php/IJECE/article/view/202