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Updated: Feb 23, 2026
Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping
Published on: November 7, 2016
Simultaneous measurement of transverse load and temperature using hybrid structured fiber-optic Fabry-Perot
Yongfeng Wu1, Yundong Zhang2, Jing Wu1
1National Key Laboratory of Tunable Laser Technology, Institute of Opto-Electronics, Harbin Institute of Technology, Harbin, 150080, China.
Abstract:
We experimentally demonstrated a novel fiber-optic hybrid structured Fabry-Perot interferometer with special air-cavity for simultaneous measurement of transverse load and temperature. By the linear phase finite impulse response filters, the transverse load sensitivities of the air-cavity and the silica-cavity are 1272.71 pm/N and -53.07 pm/N, respectively, and temperature sensitivities of the air-cavity and silica-cavity are 1.1 pm/°C and 14 pm/°C. Thus, the different sensitivities of silica-cavity and air-cavity to transverse load and temperature indicate that such a structure can be used to simultaneously measure transverse load and temperature.
