The time delay of fiber gratings and the differential group delay have been obtained using the interference method.
论文中采用干涉仪法测试取样光纤光栅的时延谱。 在此基础上,分别得到快慢轴的时延曲线,从而得到差分群时延。
参考来源 - 光纤光栅在偏振模色散补偿系统中的应用研究·2,447,543篇论文数据，部分数据来源于NoteExpress
以上来源于: WordNet
A new magnetic field measurement based on the Faraday effect and the measurement of differential group delay (DGD) in fiber grating was proposed.
提出了一种利用光纤光栅中法拉第效应和测量差分群时延(DGD)的直接测量磁感应强度的新方法，给出了理论分析和实验结果。
The differential group delay (DGD) of the output light which passes through the E-O modulator PMD is estimated and verified by the experimental data.
藉由实验量测到的眼图，我们可以评估光载波经过电光调变器，所产生的群速色散与系统被极化色散现象影响的程度。
The difficulty of solving PMD lies in its randomness of differential group delay (DGD) between the principal states of polarization (PSP) and the change.
PMD问题的最大困难在于差分群延迟(DGD)和偏振主态(PSP)变化的随机性。
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