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Proceedings Paper

Spatial multiplexing of refractive index distributed sensors by means of high-scattering MgO nanoparticle doped optical fiber
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Paper Abstract

A reflector-less refractive index fiber sensor, exploiting the high-scattering of a MgO nanoparticle (NP) fiber, is proposed. The sensor is obtained by etching the fiber to expose the core to the surrounding analyte, and the backscattering signal is read by an Optical Backscatter Reflectometer (OBR). This approach permits distributed sensing, offered by OBR detection, and permits spatial-multiplexing of parallel sensors, thanks to the scattering-level multiplexing (SLMux) of the NP-doped fiber. Simultaneous physical properties detection is also possible. Experiments, performed to detect refractive index and temperature, showed a sensitivity of roughly 0.6 nm/RIU, with a simultaneous measurement of 100°C of temperature.

Paper Details

Date Published: 20 February 2020
PDF: 6 pages
Proc. SPIE 11233, Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XX, 112330U (20 February 2020); doi: 10.1117/12.2545468
Show Author Affiliations
M. Shaimerdenova, Nazarbayev Univ. (Kazakhstan)
A. Bekmurzayeva, National Lab. Astana (Kazakhstan)
Nazarbayev Univ. (Kazakhstan)
T. Ayupova, Nazarbayev Univ. (Kazakhstan)
M. Sypabekova, National Lab. Astana (Kazakhstan)
Nazarbayev Univ. (Kazakhstan)
S. Korganbayev, Politecnico di Milano (Italy)
R. Dukenbayev, National Lab. Astana (Kazakhstan)
Nazarbayev Univ. (Kazakhstan)
W. Blanc, Univ. Côte d'Azur, CNRS (France)
C. Molardi, Nazarbayev Univ. (Kazakhstan)
D. Tosi, National Lab. Astana (Kazakhstan)
Nazarbayev Univ. (Kazakhstan)


Published in SPIE Proceedings Vol. 11233:
Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XX
Israel Gannot, Editor(s)

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