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Temporal Talbot effect in fiber gratings and its applications

机译:光纤光栅中的时间Talbot效应及其应用

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We show that a temporal effect(equivalent W the spatial Talbot effect (self-imaging) applies to the reflection of periodic pulse trains from linearly chirped fiber gratings (LCFG's). For specific input repetition periods the reflected signal is an exact replica of the input signal. Input repetition period values that give rise to this effect depend on the dispersion coefficient of the grating. We propose to use this effect as an alternative for dispersion measurement in LCFG's. Furthermore, by using the properties of the temporal Talbot effect, we can deign linear passive devices (LCFG's) for use as frequency multipliers, able to multiply the repetition rate of a given pulse train.
机译:我们显示出时间效应(等效于空间Talbot效应(自我成像),适用于线性chi光纤光栅(LCFG)反射周期性脉冲序列。对于特定的输入重复周期,反射信号是输入的精确复制品产生这种效应的输入重复周期值取决于光栅的色散系数,我们建议将该效应用作LCFG中色散测量的替代方法,此外,利用时间Talbot效应的性质,我们可以设计线性无源器件(LCFG),用作倍频器,能够使给定脉冲序列的重复率倍增。

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