• 1. differential group delay: 差分群延迟
• 2. Mean Differential Group Delay: 群时延差的平均值
• 3. DGD Differential Group Delay: 差分群时延

更多释义

• 1.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。
  dict.yoduao.com
• 2.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。
  dict.yoduao.com
• 3.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。
  dict.yoduao.com

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