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对信道间距为１００ＧＨｚ的８路１０Ｇｂ／ｓ波分复用色散补偿系统进行了计算机仿真，分析了光纤的色散和自相位调制（ＳＰＭ）、互相位调制（ＸＰＭ）、四波混频（ＦＷＭ）等非线性效应在具有级联光放大器系统中的作用。四种色散补偿方案是：ＳＭＦ（常规单模光纤）＋ＤＣＦ１（色散斜率为正的色散补偿光纤）、ＳＭＦ＋ＤＣＦ２（色散斜率为负的色散补偿光纤）、ＴＷ１（色散为正的非零色散光纤）＋ＴＷ２（色散为负的非零色散光纤）和ＴＷ２＋ＴＷ１。结果表明：ＴＷ２＋ＴＷ１方案具有最好的传输性能，此时色散、自相位调制、互相位调制和四波混频具有几乎同等的作用；ＳＭＦ＋ＤＣＦ１方案的传输性能最差，原因是自相位调制使短波长信道的脉冲严重畸变
The 8-channel 10Gb / s wavelength division multiplexed dispersion compensation system with channel spacing of 100GHz was simulated by computer, and the dispersion and SPM, XPM, FWM, And other non-linear effects in cascaded optical amplifier system role. The four dispersion compensation schemes are SMF (conventional single mode fiber) + DCF1 (dispersion compensated fiber with positive dispersion slope), SMF + DCF2 (dispersion compensated fiber with negative dispersion slope), TW1 (non-zero dispersion fiber with positive dispersion) + TW2 (Non-zero dispersion optical fiber with negative dispersion) and TW2 + TW1. The results show that the TW2 + TW1 scheme has the best transmission performance. In this case, dispersion, self-phase modulation, inter-phase modulation and four-wave mixing have almost the same effect. The transmission performance of the SMF + DCF1 scheme is the worst since the self- The pulse of the channel is seriously distorted