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2 September 2016 Fiber optic displacement sensor with signal analysis in spectral domain
Katarzyna Karpienko; Marcin Marzejon; Jerzy Pluciński
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Proceedings Volume 10034, 11th Conference on Integrated Optics: Sensors, Sensing Structures, and Methods; 100340K (2016) https://doi.org/10.1117/12.2244591
Event: 11th Integrated Optics - Sensors, Sensing Structures and Methods, 2016, Szczyrk, Poland
Abstract
In this paper, a study of a low-coherence fiber optic displacement sensor is presented. The sensor consisted of a broadband source whose central wavelength was either at 1310 nm or 1550 nm, a sensing Fabry-Pérot interferometer operating in reflective mode and an optical spectrum analyzer acting as the detection setup. All these components were connected by a single-mode fiber coupler. Metrological parameters of the sensor were investigated for different lengths of the fiber connecting the sensing Fabry-Pérot interferometer (1 m and 10 m). For each length of the fiber, displacement in the range of 0 μm to 500 μm, in increments of 50 μm were measured. Obtained results indicate that the developed sensor is not sensitive to changes in attenuation in the optical path, thus enabling remote measurement of the displacement on long distances while maintaining a satisfactory accuracy.
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Katarzyna Karpienko, Marcin Marzejon, and Jerzy Pluciński "Fiber optic displacement sensor with signal analysis in spectral domain", Proc. SPIE 10034, 11th Conference on Integrated Optics: Sensors, Sensing Structures, and Methods, 100340K (2 September 2016); https://doi.org/10.1117/12.2244591
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