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研究了不同调制格式的产生及其偏振模色散补偿性能。首先从实验上得到了不同调制格式的频谱和眼图,并将其输入偏振模色散补偿系统,实现了缓解与补偿的动态结合。其次,从数值上比较和分析了不同调制格式应用于以偏振度做反馈信号的偏振模色散补偿系统后的补偿性能,结果表明,差分相移键控对偏振度的响应度和偏振模色散补偿效果要比传统开关键控好,因此差分相移键控非常适合于以偏振度做反馈信号的偏振模色散补偿系统;而载波抑制码差分相移键控结合了载波抑制码载波抑制特性和差分相移键控的特殊频谱特性,具有最好的偏振模色散补偿效果。
The generation of different modulation formats and their polarization mode dispersion compensation performance are studied. First of all, the spectra and eye diagrams of different modulation formats are obtained experimentally and input into the polarization mode dispersion compensation system to realize the dynamic combination of mitigation and compensation. Secondly, we compare and analyze the compensation performance of different modulation formats applied to the polarization-mode dispersion compensation system using polarization as the feedback signal. The results show that the response of the differential phase-shift keying to the polarization degree and the polarization mode dispersion compensation The effect is better than the traditional open and close keying, so differential phase shift keying is very suitable for the polarization degree of the feedback signal polarization mode dispersion compensation system; and carrier suppression code differential phase shift keying combined with the carrier suppression code carrier suppression characteristics and differential Phase shift keying special spectral characteristics, with the best polarization mode dispersion compensation effect.