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Frequency modulation and compression of optical pulses in an optical fibre with a travelling refractive-index wave

机译:传播折射率波的光纤中光脉冲的频率调制和压缩

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摘要

We have studied the conditions for spectral broadening, frequency modulation and compression (both temporal and spectral) of Gaussian pulses propagating in a fibre with a travelling refractive-index wave. Analytical expressions have been derived for the dependences of pulse duration, chirp and spectral width on the distance travelled through the fibre, parameters of the fibre and radiation launched into it. Based on the numerical analysis we have studied the behaviour of these characteristics by changing the coefficient of the refractive-index modulation and other parameters of the travelling refractive-index wave.
机译:我们已经研究了在具有行进折射率波的光纤中传播的高斯脉冲的频谱展宽,频率调制和压缩(时间和频谱)的条件。对于脉冲持续时间,线性调频脉冲和频谱宽度与通过光纤的距离,光纤的参数以及向其中发射的辐射的相关性,已经得出了解析表达式。基于数值分析,我们通过更改折射率调制系数和行进折射率波的其他参数来研究了这些特性的行为。

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