gvd

Study on dispersion characteristics of interferometric GVD compensator

干涉式群速弥散补偿器色散特性研究

It is found that pump pulse intensity is seriously decreased and pulse width is increased by GVD .

结果表明，群速度色散会使泵浦光脉宽增加，功率密度降低；

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；

The incidence of GVD per300 nerve cells was significantly related to the dosage of aluminum .

本结果进一步证实了铝的神经行为毒性，并提示该毒性与铝导致神经细胞数减少有关。

The evolution of chirp induced by both GVD and SPM in the single-mode fiber

单模光纤中GVD和SPM所致的啁啾演变特性

Initial chirps of pump pulse are introduced to compensate GVD and increase the gain of parametric amplification .

为了提高单位晶体长度的参量放大增益，可以通过引入初始啁啾来抵消群速度色散的影响。

Study on effect of Gauss light pulse with chirp and GVD to the sensitivity of receivers with an optical preamplifier

啁啾高斯光脉冲和群速度色散对带前置放大器光接收机灵敏度的影响研究

The study based on self phase modulation mechanism and the effects of GVD on SC generation are mostly focused on by analyzing and calculating theoretically .

本文主要研究群速度色散对光纤中自相位调制效应SC谱展宽的影响，分析了产生SC谱的物理机制。

GVD works with native and cross-debuggers and can handle several languages in the same debugging session and the same application .

它本地工作，交叉调试并且能在相同调试部分和相同应用中处理几种语言。

One group was gravitational venous drainage ( GVD ) . The other one was vacuum assisted venous drainage ( VAVD ) .

一组为重力静脉引流组（GVD），另一组是真空辅助静脉引流组（VAVD）。

The stable condition of multi wavelength optical cavities is discussed by the method of ray pulse matrices , and the formula of net GVD is deduced .

用光束脉冲矩阵法分析了多色光学谐振腔的稳定条件；给出了计算腔内净群速度色散的准确表达式。

Then the effects of higher-order group-velocity dispersion ( GVD ) on SC generation in different fibers are analyzed and contrasted in details through simulation .

介绍了SC谱的产生机理，并通过数值计算具体分析和比较了各种光纤中高阶群速度色散（GVD）对SC谱产生的影响。

Fiber group-velocity dispersion ( GVD ), fiber nonlinearity and their interaction become the essential limiting factors of fiber communication systems with the increasing of bit rate and transmission distance .

随着光纤通信系统中信号速率的提高和传输距离的增加，光纤的群速度色散、非线性效应，以及二者之间的相互作用，成为限制系统性能的重要因素。

Results show that the spectral bandwidth of noise-like pulse will increase as the net cavity GVD increases and attains maximum when the GVD is slightly positive .

结果表明：类噪声脉冲的带宽随着腔内净色散的增加而增加，并在腔内净色散为微正时达到最大值。

Objective To study the effects of aluminum trichloride on learning memory and the numbers of cerebral neuron and granulovacuolar degeneration ( GVD ) in the hippocampus of rats .

目的研究三氯化铝对学习记忆及脑神经细胞数和海马颗粒空泡变性（GVD）的影响。

Optical soliton overcomes the influence of nonlinear effects and the group velocity dispersion ( GVD ); it can maintain the shape and amplitude unchanged when transmitting in the ideal optical fiber .

光孤子克服了非线性效应和群速度色散的影响，在理想光纤中传输时能够保持形状、幅度不变。

First we investigate a simple line defect photonic crystal waveguide with the same cavities , and achieve an extremely flat band , satisfying both the small group velocity and vanishing GVD .

本章首先考察了一种结构较为简单的单一谐振腔波导。通过对其能带的计算与分析，得到了一条极其平坦的色散曲线，满足群速度和GVD都同时接近于零。

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。

Research work on nonlinear effect on dispersion only evolves the formation mechanism of GVD in periodically-poled lithium niobate ( PPLN ), which essentially roots in the special structure of materials .

非线性过程对色散的影响的研究工作较少，仅在畴反转的结构性光学晶体（PPLN）中研究了群速度色散的产生机制，它本质上也来源于材料的特殊结构。

Effects of Gauss light pulse with chirp on the sensitivity of receivers with optical preamplifiers and of GVD on the power penalty of the sensitivity of optical receivers is discussed .

研究了啁啾高斯光脉冲信号对带前置放大器光接收机灵敏度的影响，以及群速度色散对光接收机灵敏度恶化量的影响。

Because the group velocity dispersion ( GVD ) can be balanced by self phase modulation ( SPM ) in soliton system , optical solitons maybe become the ideal message carrier in long distance communication .

由于在孤子系统中群速度色散和自相位调制效应可以相互抵消，因此孤子通信被认为是长距离传输的理想方式。

The propagation distance where the pulsed beam recovers its pulse width is dependent on the chirp parameter , the group-velocity dispersion ( GVD ) parameter , and the correlation width .

脉冲恢复初始脉宽的传输位置依赖于啁啾参量、群速率色散参量（GVD）和相关时间宽度。

In an optical parametric generation of femtosecond pulse for biaxial crystal , signal and idler pulses can be obtained by solving the coupled wave equations including the group velocity mismatch and GVD effects .

在双轴晶体超短脉冲参量放大中，利用解包含群速失配和高级GVD效应的耦合波方程得到信号和闲频脉冲的形状和强度。

However , with the improvement of transmission rate and channel capacity , transmission system meet transmission impairments caused by group-velocity dispersion ( GVD ), polarization mode dispersion ( PMD ), fiber nonlinear effects and so on .

但是随着传输速率和信道容量的提高，40Gb/s传输系统同时面临着光纤群速度色散（GVD）、偏振模色散（PMD）、非线性效应等严重的传输损伤。

We use Gires Tournois interferometer as a means of providing negative GVD to compensate positive GVD of Ti : sapphire rod . Stable ps self mode locked pulse has been obtained .

利用Gires－Tournois干涉仪提供负群速度色散补偿钛宝石棒产生的正色散，以获得稳定的ps自锁模脉冲。

Based on the sphere earth model , two methods of GVD are proposed in this paper . One is Assistant Unit Sphere Method ( AUSM ), and the other is Ellipse Model Direct Method ( EMDM ) .

本文在地球模型为理想圆球的假设前提下，给出了两种基于天象匹配的地心矢量确定方法，一种是辅助单位球法，一种是椭圆模型直接法。

Based on the fact that dielectric film filter is minimum phase filter , this paper provided a method to reconstruct phase response from its amplitude response and then for the group velocity delay ( GVD ) and the chromatic dispersion .

文章根据介质膜滤波器为最小相位滤波器的特点，提出了一种从介质膜滤波器的幅度响应重构出相位响应，然后求出它的群速度延迟以及色散的数值方法。

One is a photonic crystal waveguide based on the photonic bandgap , the structure shows good properties for slow light purpose , since the low GVD property of the dispersion curves near the inflection points in the slow light region is used .

一种是基于光子晶体禁带约束效应的单光子晶体界面介质波导，由于利用了色散曲线拐点附近具有较低群速色散的位置，该波导具有良好的慢光特性。

In this paper , we derived an analytical solution of the pulsed beam propagating in the second order dispersive medium . Then , the GVD ( group velocity dispersion ), pulse front and the space time coupling of the pulse are analyzed .

得到了脉冲高斯光束在均匀色散介质中传播的时域解析形式，由此讨论了脉冲的群速度色散、脉冲波前和时空耦合。

The dispersion relation of the optical field close to the photonic band gap in fiber gratings is obtained through theoretical analysis and numerical simulation . The phase velocity , group velocity and group velocity dispersion ( GVD ) of the transmission pulse are analyzed .

利用理论分析和数值模拟的方法，计算了光纤光栅中反射带隙附近光场满足的色散关系，分析了传输脉冲的相速度、群速度与群速度色散（GVD）。