group velocity

Taking into account of the fourth-order nonlinear refractive index, we have obtained the soliton solution of the nonlinear equation which governs the propagation of optical pulse in group velocity dispersion ( GVP) single-mode fibers.

考虑非线性四阶折射率，推导了光脉冲在群色散单模光纤中传输的非线性方程，并得到孤子型解析解。

Some "fishhook" curves are also given which appear from the third group velocity curve.

并给出了从第三支群速度曲线开始出现的若干条鱼钩状曲线。

Based on phase mismatch compensation, a scheme of group velocity compensation in frequency tripling is designed by compensation principle of birefringence and polarization rotation.

在此基础上，设计了超短脉冲三倍频群速度补偿方案，方案采用了晶体双折射群速度补偿、以及极化旋转技术。

To realize the TOB, one needs to optically control the group velocity of light.

实现光缓存的办法之一就是&用光学的手段来控制光速。

For dispersive lens the influence of the lens chromatic aberration and group velocity dispersion is studied.

对于色散透镜，研究了透镜色差和群速度色散影响。

When phase matching and group velocity matching are met, the effects of spatial walk-off, group velocity dispersion and diffraction on second harmonic are discussed in detail.

当满足相位匹配和群速度匹配时，讨论空间走离、群速度色散和衍射效应对倍频脉冲产生的影响。

Numerical value study of filter for calculation of group velocity dispersion of surface wave

面波群速度频散计算中滤波的数值实验研究

The result indicates that the hybrid mode can be given within work frequencies, in which the main mode is TE21.The value of group velocity of hybrid mode is a constant number.

计算结果表明：在工作频段内螺旋波纹波导中场结构是一种混合模，以TE21模为主，其群速基本接近常数。

The paper studied the dynamics performance of the general and the specific CPM dye laser, group velocity dispersion and self-phase modulation are compensated.

本文研究了普通的CPM环型染料激光器和棱镜补偿光脉冲的群速度弥散及自相位调制的CPM环型染料激光器的动态性能；

The function relation of pulse group velocity with frequency and rain rate is obtained.

分析了脉冲波展宽效应机理,得到脉冲波群速度与电波频率、降雨率的函数关系.

Numerical Simulation on Propagation of Ultra-Short Laser Pulse in Photonic Crystal Fibers with Different Group Velocity Dispersion Parameters

超短激光脉冲在不同色散参量光子晶体光纤中传输的数值模拟

Femtosecond Optical Parametric Amplification with Group Velocity Matching for Periodically Poled KTP

周期性极化晶体的群速匹配飞秒脉冲光学参量放大

Rayleigh wave group velocity variations in periods of 8 s and 400 s in China and the neighboring areas and 1144 pure path dispersion curves are obtained by using 2496 long period seismic waveforms recorded by CDSN and GSN.

用2496个中国数字地震台网（CDSN）和世界数字地震台网（GSN）的长周期面波群速度资料，反演得到中国及邻区的不同周期的群速度分布图以及1144条纯路径频散曲线。

The correlation property between the distribution of attenuation factor and that of the group velocity is indicated, in this study.

研究结果显示，在频率域内，面波衰减系数分布与群速度分布具有一定的相关性。

Experimental Investigation on Slow Light and Optical Pulse Propagation with Negative Group Velocity in the Electromagnetically Induced Medium

光脉冲在电磁感应介质中的超慢群速与负群速传播实验研究

Influence on Crystal Matching Length by Group Velocity Delay in Optical Parametric Process

参变过程中的群速延迟对晶体匹配长度的影响

The group velocity is the speed at which modulated signals would be transmitted.

群速度就是将调制信号发送出去的速度.

Regional surface-wave group velocity inversion by spherical harmonic function method

区域面波群速度反演的球谐函数法

The influence of pulse distortion on superluminal group velocity in an anomalous dispersive medium is researched. The result shows that superluminal group velocity does not disappear even if there is no distortion for light pulse.

研究了反常色散介质中脉冲形变对超光速群速度的影响，发现即使光脉冲完全不产生形变群速度仍会超过真空中的光速。

Anomalous Group Velocity Dispersion of PPQ Organic Conjugated Polymeric Cast Film

有机高聚物PPQ薄膜的反常群速色散

Moreover, the influence of the group velocity mismatch ( GVM) and group velocity dispersion ( GVD) on the filter for broad-bandwidth femtosecond pulse is analyzed.

同时还分析了群速失配以及色散对宽带飞秒脉冲双折射干涉滤波的影响。

Based on self-phase modulation and group velocity dispersion, we analyzed the wave shape and pulse chirp of the optical pulse in OTDM.

本文依据自相位调制效应和群速度效应对光时分复用系统中光脉冲的波形和啁啾特性进行了分析。

The reflection spectrum, time delay, and group velocity dispersion ( GVD) of the gratings are analyzed.

并对此种光栅的反射谱，时延及群速度色散进行了理论分析；

Discussion on wave packet, group velocity and phase velocity in quantum mechanics

试论量子力学中的波包、群速度和相速度

The experiment results show that the dispersion compensation and pulse compress are realized by using the pulse chrip induced by group velocity dispersion of single-mode fiber cancelling out the pulse induced by SPM of SOA.

实验表明利用普通单模光纤群速度色散导致的脉冲啁啾抵消SOA自相位调制引起的脉冲啁啾，实现了色散补偿及脉冲压缩。

For slow light in photonic crystal waveguides, large group velocity dispersion makes it difficult apply to the field of optical communication, especially to wavelength division multiplex system.

对于慢光波导，大的群速色散使得光子晶体慢光波导在光通信领域，尤其在波分复用系统很难得到实际应用。

In the second part of chapter three, the three dimensional ideal cloak is found to have infinite time delay from the ray tracing of the Hamiltonian geometry optics, and this effect is also examined by the calculated distributions of group velocity or energy transport velocity.

在第三章的第二部分，我们首先利用哈密尔顿几何光学的射线追踪法发现了三维隐身衣本身所具有的无限大时间延迟，然后结合群速度分布或能量传输速度分布，进一步证实了这种效应。