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Simultaneous Curvature and Temperature Sensing Based on a Novel Mach-Zehnder Interferometer
Photonic Sensors ( IF 5.0 ) Pub Date : 2019-05-23 , DOI: 10.1007/s13320-019-0551-z
Xiaoyan Sun , Haifeng Du , Xinran Dong , Youwang Hu , Ji’an Duan

A novel fiber inline Mach-Zehnder interferometer (MZI) is proposed for simultaneous measurement of curvature and temperature. The sensor composes of single mode-multimode-dispersion compensation-multimode-single mode fiber (MMF-DCF-MMF) structure, using the direct fusion technology. The experimental results show curvature sensitivities of −12.82 nm/m−1 and −14.42 nm/m−1 in the range of 0–0.65 m−1 for two resonant dips, as well as temperature sensitivities of 57.6 pm/°C and 74.3 pm/°C within the range of 20 °C–150 °C. In addition, the sensor has unique advantages of easy fabrication, low cost, high fringe visibility of 24dB, and high sensitivity, which shows a good application prospect in dual-parameters of sensing of curvature and temperature.

中文翻译:

基于新型Mach-Zehnder干涉仪的同时曲率和温度感测

提出了一种新型的光纤在线马赫曾德尔干涉仪(MZI),用于同时测量曲率和温度。该传感器采用直接融合技术,由单模-多模色散补偿-多模-单模光纤(MMF-DCF-MMF)结构组成。实验结果表明,对于两个共振倾角,曲率敏感度在0-0.65 m -1范围内,分别为-12.82 nm / m -1和-14.42 nm / m -1,温度敏感性为57.6 pm /°C和74.3 pm /°C在20°C–150°C的范围内。另外,该传感器具有制造容易,成本低,条纹可见度高(24dB)和灵敏度高等独特优势,在曲率和温度双参数检测中显示出良好的应用前景。
更新日期:2019-05-23
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