Ii.the Effect of Fiber-optic Dispersion on Optical Transmission
نویسنده
چکیده
Fiber-optic dispersion and its effect on optical transmission system are analyzed. The most commonly used dispersion compensation fiber (DCF) technology is studied in this article. Three schemes (pre-compensation, postcompensation, mix-compensation of dispersion compensation) of dispersion compensation with DCF are proposed. In this study, we propose three DCF compensation scheme, pre-compensation, under-compensation and mix compensation scheme. Simulation studies show that mix compensation scheme is the best. It can greatly reduce the influences of the fiber nonlinearity and increase the transmission distance greatly. The simulation model of the WDM based on the Optisystem is presented according to the above principle. The simulation results such as Q factor and BER are given and deeply analyzed. It is found that mixcompensation performance is the best. And the input fiber power is taken about 16 dB, the corresponding BER performance is better. Keywords-dispersion compensation, optical communication dispersion compensation fiber (DCF) Model, BER, Q-factor
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