首页> 外文期刊>Photonics Technology Letters, IEEE >Micrometer Wire Assisted Inline Mach–Zehnder Interferometric Curvature Sensor
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Micrometer Wire Assisted Inline Mach–Zehnder Interferometric Curvature Sensor

机译:千分尺线辅助在线马赫曾德尔干涉式曲率传感器

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摘要

A highly sensitive curvature sensor based on the inline Mach–Zehnder interferometer (MZI) adjoined with a micrometer wire taper is realized using all single mode fiber (SMF). Experimental results suggest that the addition of the SMF micrometer wire with MZI reduces the period of the interference pattern from 39.27 to 1.76 nm and increases the amplitude sensitivity by twofold. The sensitivity of the proposed sensor is −11.92 dB/ and has a resolution of in the curvature range of 0–1 . The sensing setup is highly stable and shows negligible hysteresis. The proposed sensor shows the negligible temperature sensitivity less than 0.0008 dB/°C. All the SMF structure and intensity-based interrogation method makes the sensor an economical alternative to the existing curvature sensors.
机译:使用所有单模光纤(SMF),可以实现基于灵敏的Mach-Zehnder干涉仪(MZI)并配有测微线锥度的高灵敏度曲率传感器。实验结果表明,将SMF测微线与MZI配合使用可将干涉图样的周期从39.27缩短至1.76 nm,并将振幅灵敏度提高两倍。拟议中的传感器的灵敏度为-11.92 dB /,分辨率在0-1的曲率范围内。感应设置非常稳定,磁滞可以忽略不计。建议的传感器显示出可忽略不计的温度灵敏度小于0.0008 dB /°C。所有SMF结构和基于强度的询问方法都使该传感器成为现有曲率传感器的经济替代方案。

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