Correlation between optical fibre diameter and characteristics of tilted fibre Bragg grating-assisted sensors

We report the results of a study on the influence of the fibre cladding diameter on the accuracy and resolution of tilted fibre Bragg grating-assisted refractometers. Tilted fibre Bragg gratings are an essential element used to develop high-precision fibre sensors for environmental monitoring. Compa...

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Bibliographic Details
Published in:Quantum electronics (Woodbury, N.Y.) N.Y.), 2021-12, Vol.51 (12), p.1113-1117
Main Authors: Tomyshev, K.A., Dolzhenko, E.I., Butov, O.V.
Format: Article
Language:English
Subjects:
Algorithms
Bragg gratings
Cladding
Environmental monitoring
fibre sensors
Optical fibers
Refractometers
Sensors
signal processing
tilted fibre Bragg gratings
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Summary:We report the results of a study on the influence of the fibre cladding diameter on the accuracy and resolution of tilted fibre Bragg grating-assisted refractometers. Tilted fibre Bragg gratings are an essential element used to develop high-precision fibre sensors for environmental monitoring. Comparative research was performed using one of comprehensive processing algorithms employing spectral envelope analysis. It was shown that the sensor accuracy decreases with decreasign fibre cladding diameter. At the same time, an increase in the diameter deteriorates the spectral pattern contrast, thus impeding the development of high-efficiency sensor elements.
ISSN:1063-7818
1468-4799
DOI:10.1070/QEL17663