Etched and Nanocoated SMS Fiber Sensor for Detection of Salinity Concentration

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2017
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Abstract
An optical fibre refractometer has been developed by etching and deposition of a thin film of indium tin oxide (ITO) on a single-mode-multimode-single-mode (SMS) fibre structure. The interference between modes in this structure is sensitive to the refractive index changes of the surrounding medium, achieving sensitivities of up to 7000 nm/RIU in the 1.333–1.338 RIU range. A salinity sensor has been implemented as a practical application of this proposed structure. Fast Fourier transform (FFT) analysis and tracking of an interference dip were used to monitor the interference between modes obtaining sensitivities of 0.99 nm/PSU and 0.025 rad/PSU, respectively.
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Authors Cardona-Maya, Y.;Villar, Ignacio Del;Socorro, Abian Bentor;Corres, Jesus Maria;Arregui, Francisco Javier;Botero-Cadavid, J. F.;
Journal proceedings
Year 2017
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DOI not found
URL
https://www.mdpi.com/2504-3900/1/4/333
Keywords
Medicine (General) Medicine Engineering (General). Civil engineering (General) Technology general works gynecology and obstetrics diseases of the genitourinary system. urology

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