期刊名称：International Journal of Soft Computing & Engineering
电子版ISSN：2231-2307
出版年度：2016
卷号：6
期号：4
页码：69-76
出版社：International Journal of Soft Computing & Engineering
摘要：Single mode fiber has been used in long haul communications systems to increase the transmission capacity and to meet the increasing of demand for the communication services. Therefore, any type of the signal degradation effects should be strappingly minimized. The performance of a digital communication system is measured by probability of error per bit, which is referred to as the bit error rate (BER). Error occurs as a result of noise in the received signal, or due to pulse spreading into neighboring bits which result in symbol interference. In this paper the optical signal degradation effects were studied. Initially the optical signal Eye diagram for an optical fiber of different lengths before applying compensation mechanism were obtained using OPTsys simulation tool. The data rate of 20 - 40 Gbps is introduced to the system and examined using specified fiber lengths parameters. It is observed that the received signals were significantly degrade due to the signal degradation effects. Fiber Bragg Grating is implemented as spreading lessens mechanism and the optical amplifier (EDFA) is used to compensate the reduction of signal power when propagates through the fiber strand. The results obtained showed that the width of the pulse spreading significantly reduced from 0.43ps to 0.18ps, with BER of 8.825x10-10, Quality factor = 9.7 and total possible distance is found to be of 25 k.
