首页> 外文会议>Frontiers in ultrafast optics: biomedical, scientific, and industrial applications XVI >Measuring spatiotemporal intensity-and-phase complexity of multimode fiber output pulses
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Measuring spatiotemporal intensity-and-phase complexity of multimode fiber output pulses

机译:测量多模光纤输出脉冲的时空强度和相位复杂度

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We demonstrate ultrashort pulse spatiotemporal field measurement for multimode optical fibers, using a single-frame characterization technique, called Spatially and Temporally Resolved Intensity and Phase Evaluation Device: Full Information from a Single Hologram (STRIPED FISH). We measure STRIPED FISH traces and retrieve the pulse field E(x,y,t) or equivalently E(x,y,ω), to generate movies revealing the field structure induced by propagating modes, due to their differences in field spatial distribution, modal propagation velocity and modal dispersion inside the fiber. We launch femtosecond pulses near 800nm from Ti: Sapphire laser to investigate linearly polarized modes LP_(01), LP_(11), LP_(02) and LP_(21) in multimode fibers.
机译:我们演示了使用单帧表征技术对多模光纤进行超短脉冲时空场测量,该技术称为空间和时间分辨强度和相位评估设备:来自单个全息图的完整信息(STRIPED FISH)。我们测量STRIPED FISH迹线,并检索脉冲场E(x,y,t)或等效的E(x,y,ω),以产生揭示传播模式引起的场结构的电影,这是由于它们在场空间分布上的差异,光纤内部的模态传播速度和模态色散。我们从Ti:蓝宝石激光器发射近800nm的飞秒脉冲,以研究多模光纤中的线性偏振模LP_(01),LP_(11),LP_(02)和LP_(21)。

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