1) Differential phase delay (DPD)
差分相时延(DPD)
2) Differential Phase Detection(DPD)
差分相位检测(DPD)
3) differential delay lines
差分延时线
1.
The time resolution of 300 ps is obtained,because the differential delay lines are used to perform interpolation and to realize the fine time measurement,and high frequency counter is designed to perform the coarse time measurement.
该模块采用高频计数器实现粗时间测量,差分延时线内插技术完成细时间测量,时间分辨率为300 ps。
4) differential group delay
差分群时延
1.
The character of polarization mode dispersion(PMD) in high-speed optical fiber transmission system is analyzed theoretically,and the mechanism of differential group delay(DGD) caused by PMD is found out.
文章从理论上分析了高速光纤通信系统中PMD的特性,得出了由PMD导致的DGD(差分群时延)的机理。
2.
Furthermore, differential group delay of the dispersion shifted fibers is measured using this method.
介绍了通过偏振复用孤子测量偏振模色散的基本原理 ,并且在实验上实现了对保偏光纤的测量 ,测量结果与通过数值计算得到的保偏光纤的差分群时延符合得很好。
3.
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。
6) Differential group delay
差分群延时
1.
It is important to know how does the degree of polarization (DOP) change with differential group delay (DGD) when DOP is feedback information for adaptive PMD compensation.
在用偏振度作为反馈信号的动态偏振模色散补偿系统中 ,偏振度与差分群延时的关系对于准确快速的动态偏振模色散补偿很重要。
2.
Using this analytical expression and fast Fourier transform, the sensitivity and trackable differential group delay range of degree-of-polarization detection technique are investigated by numerical simulation in 20 Gb/s optical transmission system.
5个位周期 (75ps)的差分群延时进行跟踪 ,但当占空比低于 0 。
补充资料：怀卢延让（时延让新及第）
【诗文】：
冥搜忍饥冻，嗟尔不能休。几叹不得力，到头还白头。
姓名归紫府，妻子在沧洲。又是蝉声也，如今何处游。
【注释】：
【出处】：
全唐诗：卷834-22
冥搜忍饥冻，嗟尔不能休。几叹不得力，到头还白头。
姓名归紫府，妻子在沧洲。又是蝉声也，如今何处游。
【注释】：
【出处】：
全唐诗：卷834-22
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条