%0 Journal Article %T Research on Dispersion Compensation of 40 GB/s Optical Duo-Binary Coded Transmission System %A Yue Zhou %A Yufeng Shao %A Zhifeng Wang %A Changxiang Li %A Junyi Zhou %A Wenzhe Ma %J Optics and Photonics Journal %P 190-195 %@ 2160-889X %D 2016 %I Scientific Research Publishing %R 10.4236/opj.2016.68B031 %X
A 40 Gb/s high speed optical transmission system is designed, and the different dispersion compensation schemes are adopted to realize the transmission of the optical duo-binary (ODB) signals over 120 km optical fiber. Optical duo-binary signals are generated by using a precoder, two low- pass filters (LPF) and one mach-zehnder modulator (MZM). Through combination of dispersion compensation fiber (DCF) and single mode fiber (SMF) in the transmission link, four different dispersion compensation schemes (pre-compensation, post-compensation and hybrid compensation (pre+ post) and hybrid compensation (post+ pre)) were compared. Analyzing Q factor, BER, eye diagrams and receiver sensitivity in several dispersion compensation schemes, the simulation results are: the cut-off frequency of LPF affects the transmission performance, and the hybrid compensation (post+ pre) scheme is the optimal dispersion compensation method.
%K Optical Communication %K Duo-Binary %K Dispersion Compensation %K Q Factor %K Eye Diagrams %U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=70327