High-performance fiber-optic temperature sensor using low-coherence interferometry.
A temperature-sensor system based on low-coherence interferometry with a fiber Mach-Zehnder interferometer as a phase modulator was implemented. A measurement range of 20 to 800 degrees C with a resolution of 0.025 degrees C (corresponding to 0.0004 fringe) was achieved with a 1-mm-long fiber Fabry-Perot interferometer as the sensing element.
Choi
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HS
Taylor
H F
HF
Lee
C E
CE