In the meantime, a considerable pulse broadening is observed, which agrees well with the theoretical prediction based on linear theory.
同时观测到了较大的脉冲展宽，这与线形理论相符。
Randomly varying birefringence in optical fiber can lead to pulse broadening, corresponding to polarization-mode dispersion (PMD) effect.
光纤的随机双折射效应可导致脉冲无规展宽即偏振模色散(PMD)。
Pulse broadening due to fiber dispersion is analyzed. The principle of dispersion compensation using chirped fiber Bragg gratings is introduced.
分析了由于光纤的色散引起的脉冲展宽，并介绍了啁啾布拉格光纤光栅进行色散补偿的基本原理。
The analysis results show that it is an effective method to reduce the probability of error of the system by increasing the pulse broadening factor.
结果表明，通过增大脉冲展宽因子可以有效降低该系统的误码率。
The process of the wavelength conversion is analyzed by numerical simulation and walk-off effect and pulse broadening have been observed in pulse propagations.
通过数值模拟，研究了波长转换过程，观察到脉冲传播过程中出现了走离效应与脉冲展宽。
Study the detailed physical process of the group-velocity dispersion-induced pulse broadening, this must be taken as prepare the ground for the founding of optical soliton in nonlinear fiber.
研究了线性光纤中色散导致光脉冲展宽的详细物理过程，以此为光纤中光孤子产生的物理过程作物理上的准备。
Based on the characteristics of linearly chirped pulse, a numerical model for amplification of broadband chirped pulse in the inhomogeneous broadening system has been established.
基于线性啁啾脉冲的特性，建立了一种描述非均匀加宽系统中宽带啁啾激光脉冲放大的理论计算模型。
The pulse spectrum broadening and dispersion compensation compression phenomenon when focusing the laser pulse into bulk media are experimentally investigated.
实验研究了超强超短飞秒激光脉冲在经过块状介质后的光谱展宽和色散补偿压缩现象。
The results show that group-velocity mismatching is the main reason of the broadening of the second harmonic pulse and could lead to the decrement of conversion efficiency.
研究结果表明，群速度失配会导致二倍频光脉冲宽度的增大和转换效率的降低，非线性相位调制使二倍频光脉冲形状发生畸变，降低转换效率。
The results show that group-velocity mismatching is the main reason of the broadening of the second harmonic pulse and could lead to the decrement of conversion efficiency.
研究结果表明，群速度失配会导致二倍频光脉冲宽度的增大和转换效率的降低，非线性相位调制使二倍频光脉冲形状发生畸变，降低转换效率。
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