Journal
OPTICS EXPRESS
Volume 29, Issue 9, Pages 12930-12940Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.423307
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Funding
- Higher Education Discipline Innovation Project [B16009]
- Japan Society for the Promotion of Science (KAKENHI) [17K18891, 18H01504]
- National Key Research and Development Program of China [2017YFA0701201, 2019YFB2204001]
- National Natural Science Foundation of China [11604042, 61775032]
- Fundamental Research Funds for the Central Universities [N180406002, N180408018, N2004021]
- JSPS
- CERN under the JSPS-CERN joint research program
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A dual channel SPR optical fiber sensor capable of measuring glucose concentration and ambient temperature has been proposed. The sensor improves the accuracy of glucose concentration detection by monitoring ambient temperature, demonstrating high sensitivity.
The accuracy of the surface plasmon resonance (SPR) optical fiber sensor is affected by the change of ambient temperature. Therefore, we propose a simple dual channel SPR optical fiber sensor, which can measure both glucose concentration and ambient temperature. The proposed sensor is a two-channel structure based on a no-core optical fiber (NCF): one channel is coated with gold film and polydimethylsiloxane (PDMS) to sense the ambient temperature, and the other is coated with silver film to sense glucose concentration. The experimental results show that the sensor's sensitivity for sensing glucose concentration is 2.882 nm / %, and for sensing temperature is -2.904 nm / degrees C. By monitoring the real-time temperature, the accuracy of glucose concentration detection was improved. The proposed sensor has a simple and compact structure, and it is suitable for sensing glucose solution or other analyte solutions that need temperature compensation. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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