Multi-point sensor based on SMS fiber structure

Yadira A. Fuentes-Rubio; René F. Domínguez-Cruz; Oscar Baldovino-Pantaleón; Daniel A. May-Arrioja

doi:10.1117/12.2550308

12 March 2020 Multi-point sensor based on SMS fiber structure

Yadira A. Fuentes-Rubio, René F. Domínguez-Cruz, Oscar Baldovino-Pantaleón, Daniel A. May-Arrioja

Proceedings Volume 11436, 2019 International Conference on Optical Instruments and Technology: Optical Sensors and Applications; 114360W (2020) https://doi.org/10.1117/12.2550308
Event: 2019 International Conference on Optical Instruments and Technology, 2019, Beijing, China

Abstract

In this paper we present the implementation of a multi-point fiber optic sensor for monitoring different concentrations of contaminants in water. The experimental set-up consists in two fiber structures built each one by splicing of Single Mode-Multimode-Single Mode (SMS) segments. Both structures are operating in a multimode interference regime and collocated in parallel geometry. The experimental results show the simultaneous detection in transmission configuration for water and salt (0% - 30% w/w) and water-glycerin (0% - 40% w/w) blends. The advantage of the proposed system has a simple construction, low cost, linear response and each sensing point works independently one of other.

Citation Download Citation

Yadira A. Fuentes-Rubio, René F. Domínguez-Cruz, Oscar Baldovino-Pantaleón, and Daniel A. May-Arrioja "Multi-point sensor based on SMS fiber structure", Proc. SPIE 11436, 2019 International Conference on Optical Instruments and Technology: Optical Sensors and Applications, 114360W (12 March 2020); https://doi.org/10.1117/12.2550308

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KEYWORDS

Sensors

Structured optical fibers

Fiber optics sensors

Liquids

Refractive index

Multimode fibers

Single mode fibers

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