Swetha Reddy 01 04 A system of 128 modulated channels featuring 70 GHz spacing and a bandwidth of 328 nm is presented throughout this study Thus optical signals are to be dispersed and those must fade when being sent across greater distances As a result occasionally we have to boost the signal by a bit An ear doped fiber amplifier was used to maintain the same signal strength in the DWMD system A gain supply of 20 dB average gain and a gain shape variation of 8 dB peak to peak covers the bandwidth with the EDFA DWMD systems have been modelled using the physical EDFA model in OptSim Copyright (c) Journal of Engineering Technology and Sciences. All rights reserved 2026