期刊名称：International Journal of Signal Processing, Image Processing and Pattern Recognition
印刷版ISSN：2005-4254
出版年度：2015
卷号：8
期号：5
页码：43-48
DOI：10.14257/ijsip.2015.8.5.05
出版社：SERSC
摘要：This paper demonstrates the comparison of 40 Gbps DWDM system using hybrid optical amplifier configurations (EDFA-EDFA and EDFA-SOA ) are implemented with RZ and NRZ encoding techniques at various distance along with DCF having dispersion - 80 ps/nm/Km . DWDM systems with 4 channels each having a bit rate of 10 Gbps and 0.8 nm equal channel spacing. The performance of EDFA-EDFA and EDFA-SOA hybrid optical amplifiers with different modulation formats (NRZ and RZ) are evaluated in terms of BER, eye height and Q-factor. EDFA-EDFA performed better upto 200 km as compared to EDFA-SOA optical amplifiers at 100 km distance with NRZ format. For RZ format EDFA-EDFA performance of DWDM system is also good upto 250 km as compared to EDFA-SOA upto 120 km. In this paper, DWDM system using EDFA-EDFA yields better result than EDFA-SOA and also for RZ encoding technique communication is achieved more distance than NRZ encoding technique
