pulse bandwidth

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。

The results show: both pulse width and bandwidth are widened in positive dispersion medium, but pulse width is getting more and more narrow along propagating direction in negative dispersion medium, which is a typical soliton pulse.

结果表明：在正色散介质中，脉宽及带宽均展宽，而在负色散介质中，脉冲沿传播方向越来越窄，表现为孤子效应。

This paper presents the pulse signal spectrum bandwidth using Romberg numerical integration algorithm under a certain energy wastage required. A reconstruction signal is obtained by Fourier Series, and the optimum bandwidth of the measurement system is also presented.

本文用Romberg数值积分法计算出在一定能量损耗限值要求下的脉冲信号频谱宽度，并用付氏级数对其进行了信号重构验证，据此得出了脉冲信号测试系统带宽的最佳值。

For the first type, the pulse duration and bandwidth both enlarge with the increase of pump.

第一种随泵浦功率升高，脉冲宽度及光谱宽度均增大。

Through calculating the flux contrast including 95% focal spot energy with time, it is found that the optimal smoothing effect is achieved with one color cycle and 0.3~ 0.5 nm basic pulse bandwidth.

通过计算包含焦斑能量95%范围内的通量衬比度随时间变化的曲线，得出一个色循环、基准脉冲带宽0.3~0.5nm下可以获得最佳的焦斑平滑效果。

The laser output energy, dynamic to static ratio, pulse bandwidth ana spectral line width etc. by Q-switching ware mea-sured and analysed theoretically.

测量了调Q后激光输出的能量、动静比、脉宽、谱宽等，并从理论上进行了一些分析。

Based on the theory of the matched filter, the bandwidth-duration product of the signal can be made greater than one, by the way of using the pulse width to add to the method of LFM signal band.

在匹配滤波器理论基础上，使用在宽脉冲内附加线性调频的方法可以扩展信号的频带，使信号的时宽带宽积大于一。

At a given pump power whose gain parameter is in the small signal regime, the time delay and pulse broadening factor increase with the increasing gain coefficient, whereas decrease with the increasing gain bandwidth and effective mode area. 2.

在固定泵浦功率并保证增益参数在小信号条件下，时间延迟和脉冲展宽因子均随着增益系数的增加而增加，随着增益带宽和有效截面积的增加而减少。

The results show that the M2 factor depends on the pulse bandwidth ( or pulse duration), spatial correlation degree and average wavelength.

结果表明，M2因子受空间相关度，带宽（或脉冲宽度）和平均波长的影响。

Pulse Compressive Receiver system Based Big Bandwidth SAW RAC

超大带宽声表面波脉冲压缩接收机系统

The result is discussed and explained theoretically by the numerical calculation of pulse excitation bandwidth.

上述实验现象在理论上采用脉冲的激发带宽方法作了解释和讨论。