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利用分离信道的分步傅立叶法对信道间距为 0 8nm的 8路 1 0Gbit/s波分复用色散补偿系统进行仿真实验 ,分析了在具有级联光放大器系统中光纤色散和各种非线性效应 (自相位调制SPM、交叉相位调制XPM、四波混频FWM)对系统传输的影响。仿真结果表明 ,在色散补偿WDM通信系统中 ,SPM对系统传输造成的损伤最大。并且由于非线性效应、传输损耗及噪声的综合影响 ,应当选取合适的系统输入功率
An 8-channel 10Gbit / s WDM dispersion compensation system with a channel spacing of 0 8nm was simulated by a split-step Fourier method based on split-channel method. The effects of fiber dispersion and various nonlinear effects in a cascaded optical amplifier system (Self-phase modulation SPM, cross-phase modulation XPM, four-wave mixing FWM) on the system transmission. The simulation results show that in the dispersion compensation WDM communication system, SPM has the greatest damage to the system transmission. And due to the combined effect of nonlinear effects, transmission loss and noise, the appropriate system input power