Simultaneous Curvature and Temperature Sensing Based on a Novel Mach-Zehnder Interferometer

• 来源期刊: 光子传感器（英文版）
• 关键词: Mach-Zehnder interferometer curvature sensing temperature sensing simultaneous sensing
• 年，卷（期）: 2020,（2）
• 页码范围: 171-180
• 页数: 10页
• 语种: 英文
• DOI: 10.1007/s13320-019-0551-z

摘要

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 -12.82nm/m-and-14.42nm/m-1 in the range of 0-0.65m-1 for two resonant dips,as well as temperature sensitivities of 57.6pm/℃ and 74.3pm/℃ within the range of 20 ℃-150 ℃.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.