均匀和非均匀波导长周期光栅的时域特性

J. Azaña, M. Kulishov
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引用次数: 0

摘要

我们对超短脉冲在线性状态下通过波导长周期光栅(LPG)结构的传播进行了详细的理论分析。我们首先考虑了均匀LPG的情况,并研究了典型的光栅不均匀性,如光栅轮廓化和光栅周期啁啾,对LPG结构的光谱和时间行为的影响。除了其内在的物理意义外,我们的研究还揭示了基于lpg的器件在亚皮秒范围内进行光脉冲重构操作的强大潜力。
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Time-domain properties of uniform and non-uniform waveguide long-period gratings
We conduct a detailed theoretical analysis of ultrashort pulse propagation through waveguide long-period grating (LPG) structures operating in the linear regime. We first consider the case of uniform LPGs and we also investigate the impact of the typical grating non-uniformities, e.g. grating profile apodization, and grating period chirping, in the spectral and temporal behaviour of LPG structures. Besides its intrinsic physical interest, our study reveals the strong potential of LPG-based devices for optical pulse re-shaping operations in the sub-picosecond regime.
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