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Directional bending sensor based on spatially arrayed long period gratings in multicore fiber

机译:基于多芯光纤的空间排列长期光栅的定向弯曲传感器

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Spatially arrayed long period gratings (LPGs) are inscribed in a multicore fiber by CO2 laser. The LPGs in the center core and one outer core exhibit different responses to bending and temperature. The directional bending sensor based on the LPGs has large sensitivity even for ultra-low curvature values ranging from 0 to 0.359 m-1.
机译:空间排列的长周期光栅(LPG)通过CO 2 激光器刻在多芯纤维中。中心核心的LPG和一个外部核心对弯曲和温度表现出不同的反应。即使对于0至0.359M -1 -1 / sup>的超低曲率值,基于LPG的定向弯曲传感器也具有很大的灵敏度。

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