Photonic Sensors, 2020, 10 (2): 171, 网络出版: 2020-12-23   

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

Simultaneous Curvature and Temperature Sensing Based on a Novel Mach-Zehnder Interferometer
作者单位
State Key Laboratory of High Performance Complex Manufacturing, College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China
摘要
Abstract
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/℃ and 74.3 pm/℃ within the range of 20 ℃ - 150 ℃. In addition, the sensor has unique advantages of easy fabrication, low cost, high fringe visibility of 24 dB, and high sensitivity, which shows a good application prospect in dual-parameters of sensing of curvature and temperature.

Xiaoyan SUN, Haifeng DU, Xinran DONG, Youwang HU, Ji’an DUAN. Simultaneous Curvature and Temperature Sensing Based on a Novel Mach-Zehnder Interferometer[J]. Photonic Sensors, 2020, 10(2): 171. Xiaoyan SUN, Haifeng DU, Xinran DONG, Youwang HU, Ji’an DUAN. Simultaneous Curvature and Temperature Sensing Based on a Novel Mach-Zehnder Interferometer[J]. Photonic Sensors, 2020, 10(2): 171.

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