5 October 2017 Dual-core optical fiber based strain sensor for remote sensing in hard-to-reach areas
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Abstract
We present research on optical fiber sensors based on microstructured multi-core fiber. Elaborated sensor can be advantageously used in hard-to-reach areas by taking advantage of the fact, that optical fibers can play both the role of sensing elements and they can realize signal delivery. By using the sensor, it is possible to increase the level of the safety in the explosive endangered areas, e.g. in mine-like objects. As a base for the strain remote sensor we use dual-core fibers. The multi-core fibers possess a characteristic parameter called crosstalk, which is a measure of the amount of signal which can pass to the adjacent core. The strain-sensitive area is made by creating the tapered section, in which the level of crosstalk is changed. Due to this fact, we present broadened conception of fiber optic sensor designing. Strain measurement is realized thanks to the fact, that depending on the strain applied, the power distribution between the cores of dual-core fibers changes. Principle of operation allows realization of measurements both in wavelength and power domain.
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Anna Mąkowska, Anna Mąkowska, Łukasz Szostkiewicz, Łukasz Szostkiewicz, Agnieszka Kołakowska, Agnieszka Kołakowska, Dawid Budnicki, Dawid Budnicki, Beata Bieńkowska, Beata Bieńkowska, Łukasz Ostrowski, Łukasz Ostrowski, Michał Murawski, Michał Murawski, Marek Napierała, Marek Napierała, Paweł Mergo, Paweł Mergo, Tomasz Nasiłowski, Tomasz Nasiłowski, } "Dual-core optical fiber based strain sensor for remote sensing in hard-to-reach areas", Proc. SPIE 10434, Electro-Optical Remote Sensing XI, 104340G (5 October 2017); doi: 10.1117/12.2278600; https://doi.org/10.1117/12.2278600
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