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针对基于光纤自相位调制效应的多波长全光再生系统,分析了光纤平均色散对再生器品质因子改进量的影响,提出一种色散管理优化方法.由于波长间色散差异会导致再生系统性能的稳定性下降,通过选择色散补偿光纤和单模光纤的长度,使其合成的色散曲线与各波长分别达到最优再生性能时对应的色散曲线近似拟合,同时保证该色散曲线落在性能满意度高的色散区域,然后调整信号输入功率和滤波器的偏移量,可有效改善多波长再生性能的稳定性,实现再生器的色散管理优化。
Aiming at the multi-wavelength all-optical regeneration system based on optical fiber self-phase modulation effect, the influence of average fiber dispersion on the improvement of quality factor of regenerator is analyzed and a dispersion management optimization method is proposed. Since dispersion of wavelength can lead to stable performance of regenerative system By choosing the length of the dispersion compensation fiber and the single mode fiber, the dispersion curve of the synthesized dispersion curve and the corresponding dispersion curve of each wavelength reaching the optimal regeneration performance are respectively approximated and the dispersion curve is guaranteed to have high satisfaction Of the dispersion region, and then adjust the signal input power and filter offset, which can effectively improve the stability of multi-wavelength regeneration performance, to achieve regenerator dispersion management optimization.