Theoretical analysis and numerical simulation of compression to negative chirp pulse based on dispersion-shift fiber (DSF) using distributed Raman Amplification.
该文对分布式拉曼放大的色散位移光纤（DSF）负啁啾光脉冲压缩进行了理论分析和数值模拟。
In this paper, the distorted pulse shape is derived in the chirp pulse transmission through dispersive optical fiber, and the method is given for the chirp pulse not to be widened.
本文导出了啁啾激光脉冲经色散光纤传输后的畸变波形，以此为基础讨论了避免啁啾光脉冲被光纤展宽的各种方法。
The results show that chirp is nonlinear and has extreme value near the center of the pulse and depends on the initial chirp.
研究结果表明：三阶色散所致啁啾是非线性的，存在极值，极值点在脉冲中心附近，并且与入射高斯脉冲的初始啁啾有关。
The influence of the principal parameters of optical chirp reversal devices on ability to restore signal wave form and pulse duration has been analysed and simulated.
分析和数值模拟了用瞬态简并四波混频实现光学啁啾反转的器件的主要参数对恢复信号波形和脉冲宽度能力的影响。
Furthermore, the suitable chirp of fundamental field can reduce the distortion of third-harmonic pulse and increase the third-harmonic conversion efficiency.
合适的基频光频率啁啾可以减小三倍频光脉冲的畸变，并有效地提高三倍频转换效率。
Nowadays, the optical pulse used in the OTDM system is often generated by the gain-switched distributed-feedback (GS-DFB) semiconductor laser, which has a large pulse width and negative chirp.
目前常采用GS-DFB半导体激光器作为OTDM系统的光脉冲源，这种脉冲源产生的光脉冲一般较宽。
The effect of initial chirp on the quality of the soliton-effect picosecond pulse compression in loss and no-loss fibers is studied by simulating the process of compression in conventional fibers.
以常规光纤中的皮秒脉冲孤子效应压缩过程为基础，研究了在有无损耗的光纤中初始啁啾对脉冲压缩的影响。
The transversal intensity distribution remains nearly unchanged with increasing chirp parameter for relatively large values of the pulse duration.
脉冲宽度较大时，啁啾参数增大对横向光强的影响减小。
Suitable initial time delay and pulse chirp of pulses can improve the suppression and compensation for the distortion.
合适的初始脉冲时延和初始脉冲啁啾有利于频域相位共轭技术对交叉相位调制所致信号失真的抑制。
The propagation characteristics and the influence of initial chirp on Gaussian pulse width were discussed.
计算了高斯型脉冲宽度在色散缓变光纤中的传播特性和初始啁啾对脉宽演变的影响。
Pulse width's change dependence on not only input power, but also initial chirp.
脉宽的变化与功率和预啁啾都相关。
The relation between the chirp in phase of soliton pulse and soliton propagation is discussed in this paper.
讨论了光孤子传输中，由脉冲包络的相位变化产生的啁啾与孤子传输的关系。
Numerical results show that the squeezing ration decreases at some initial distance when the chirp is positive and the squeezing was the best if the pulse is ideal fundamental soliton.
数值结果表明，初始正啁啾在初始一定距离范围内能减小压缩比，理想光孤子的压缩效果最好。
Furthermore, if the chirp value is proper, the effect of fiber loss can be counteracted completely, and the transmission of picosecond pulse is just as the...
如果所选取的啁啾值适当，则可以几乎完全抵消光纤损耗的作用，从而使光脉冲呈现出如同在无损耗的光纤中传输时一样。
And it decreases also with the increase of absolute value of the initial pulse chirp coefficient, but has no relation with the sign of chirping coefficient.
系统的输出信号的偏振度还随着信号原始啁啾系数绝对值的增大而减小，但与啁啾系数的符号无关。
A method for detecting the chirp of femtosecond optical pulse directly is proposed in this paper.
介绍了一种能够直接检测飞秒脉冲啁啾大小的方法。
We have obtained the self-similar pulse amplitude function, phase function, strict linear chirp function, and thee?ective temporal pulse width.
在增益色散效应的影响下，得到自相似脉冲渐进解析解的振幅函数、相位函数、线性啁啾函数和脉冲时域宽度。
It was an intuitionist method for judge whether have a chirp in laser pulse.
这种方法能够直观的检测光脉冲是否含有啁啾。
The results show that linear high-order dispersion affects the position and the phase, doesn"t affects the amplitude , the width and the chirp of the bright-soliton-like pulse."
结果表明：线性高阶色散对类明孤子脉冲的位置和相位有影响，而对振幅、宽度和啁啾没有影响；
The simulations show that when the grating grooves are unparallel, the original chirp leads to the pulse width smaller only considering GDD.
结果表明，当光栅对刻线失配时，且只考虑二阶色散的影响时，初始啁啾导致脉冲宽度小于无初始啁啾脉冲的宽度。
When the initial chirp of the pulse is of same (opposite) sign as that of quintic nonlinearity coefficient, the whole chirp increases (decreases).
当预啁啾与五阶非线性系数同(异)号时，总啁啾增加(减小)。
According to the change of widthes of the input and output pulses, the chirp signals can be identified and their parameters such as the pulse width and FM slope can be determined.
根据输入输出脉冲宽度的变化，可识别出线性调频脉冲压缩雷达信号，并测出其参数如脉冲宽度和调频斜率。
The initial frequency chirp of the input pulse has a larger influence on the output pulse-width but a small influence on the output soliton-quality.
相对而言，初始频率啁啾对输出孤子宽度的影响较大，但对输出孤子质量的影响并不严重。
This paper analyzes the technology with intra-pulse chirp and inter-pulse stepped frequency to obtain high-resolution range profile. The echo expressions of static and moving targets are derived.
本文分析阐述了利用脉内调频、脉间跳频技术获取距离高分辨一维成像的可行性，导出了静止目标和运动目标的回波表达式。
Chirp signal is a kind of pulse-compressed signal with large time-bandwidth products achieved through linear frequency modulation. It has high resolution in range because of its great bandwidth.
线性调频信号是通过线性频率调制获得大的时宽带宽积的一种脉冲压缩信号，具有大的带宽，因此有高的距离分辨力。
The ambiguity function of intra-pulse chirp and inter-pulse stepped frequency signal is analyzed and obtained according to new type radar. Firstly, the expression of the signal is given.
本文结合新型体制脉内调频、脉间步进跳频雷达，分析推导了该信号形式的模糊函数。
The ambiguity function of intra-pulse chirp and inter-pulse stepped frequency signal is analyzed and obtained according to new type radar. Firstly, the expression of the signal is given.
本文结合新型体制脉内调频、脉间步进跳频雷达，分析推导了该信号形式的模糊函数。
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