pulse distortion

The character of high speed light pulse distortion and the fluency of the amplified spontaneous emission on the SNR gain under high power signal and pumper are analyzed.

同时进一步分析了在大信号、高泵浦功率条件下高速光脉冲信号放大过程中的各种畸变特性以及放大的自发辐射对系统信噪比增益的影响。

The transient thermal-optical distortion in the Nd: YAG laser rod repeat pulse-pumped by high power ring-LD array has been simulated in detail by using ray tracing method and finite element method.

从高功率环形LD阵列的发光特性出发，用光线追迹法和有限元方法计算得到高功率激光二极管阵列重复脉冲抽运棒状激光器在线偏振状态工作下的瞬态热畸变。

Inputting high-frequency and single pulse signal into coaxial line, the time delay and distortion caused by dispersion can be recorded and measured by digital oscilloscope. The line length and attenuation coefficient are achieved.

将高频单脉冲信号输入同轴电缆，借助数字存储示波器记录输入、输出端的波形和相对延时，可以测量传输线的电缆长度和衰减系数，同时观察脉冲波形因色散引起的畸变。

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。

Simulation of Transient Thermal-optical Distortion in Rod Laser Pulse-Pumped by Ring-Laser-Diode Array

环形激光二极管阵列脉冲抽运激光棒中瞬态热畸变分析

The results show that the third-order dispersion generates distortion to the pulse shape with an oscillatory structure at one of pulse edges.

波形分析显示三阶色散项会引起光脉冲形状发生畸变，使波形中心偏向一侧，在这一侧脉冲沿附近形成拖尾振荡结构。

The parameters of optical fiber structure and Brillouin gain also affect the gain saturation process and influence the time delay and pulse distortion of SBS slow light.

光纤的增益参数和结构参数会对增益饱和过程产生影响，从而对SBS慢光的延迟时间和脉冲失真产生很大的影响。

By combining the PCF with a bandpass filter, a near step-like power transfer function with no pulse distortion is achieved.

利用PCF和带宽滤波器，获得了近似阶跃状的功率传输函数和没有发生形变的再生脉冲。