Simultaneous Measurement of Refractive Index and Temperature Based on SMF–HCF–FCF–HCF–SMF Fiber Structure
Abstract
:1. Introduction
2. Structural Design and Working Principle
3. Experimental Results and Discussion
3.1. Intermodal Interference Spectrum of Sensor
3.2. Refractive Index Sensing
3.3. Temperature Sensing
3.4. Analysis of Experimental Results
3.5. Repeatability Experiment of Sensor
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Sensor Structure | Sensitivity of RI | Sensitivity of Temperature | Simultaneous Detection | Ref. |
---|---|---|---|---|
MMF–eMCF–MMF + FBG | −11 nm/RIU at 1.34–1.38 | 56.42 pm/°C at 24–130 °C | no | [36] |
SMF–TFCF–SMF | 171.2 nm/RIU at 1.3448–1.3774 | – | no | [37] |
MMF–TFCF–MMF | – | 0.284 dB/°C at 45–80 °C | no | [38] |
SMF–FMF–SCF–SMF | – | 91.8 pm/°C at 25.8–108.5 °C | no | [19] |
MCF + TFBG | −74.2 dB/RIU at 1.31–1.39 | 9.75 pm/°C at 10–40 °C | no | [39] |
MMF–eMCF–MMF | 178.20 dB/RIU at 1.334–1.370 | 66.73 pm/°C at 30–80 °C | no | [40] |
MMF–TCF–MMF + FGB | −0.541 nm/RIU at 1.3479–1.3775 | 12.45 pm/°C at 30–110 °C | yes | [41] |
SMF–HST–SMF | 16.76 nm/RIU at 1.333–1.3818 | 22.58 pm/°C at 20.1–60 °C | yes | [42] |
SMF–MMF–SMF + FBG | −41.92 nm/RIU at 1.335–1.372 | 0.093 nm/°C at 20–60 °C | yes | [43] |
SMF–FMF–SMF | −39.15 nm/RIU at 1.336–1.38 | 0.05 nm/°C at 25–70 °C | yes | [44] |
SMF–THCF–SMF | 214.97 nm/RIU at 1.333–1.379 | 2.96 pm/°C at 50–85 °C | yes | [45] |
HCF–FCF–HCF | 275.30 nm/RIU at 1.332–1.412 | 94.4 pm/°C at 25–55 °C | yes | This work |
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Xu, R.; Ke, C.; Xue, Y.; Xu, Y.; Xue, M.; Ye, J.; Liu, H.; Chen, M.; Qu, S.; Yuan, L. Simultaneous Measurement of Refractive Index and Temperature Based on SMF–HCF–FCF–HCF–SMF Fiber Structure. Sensors 2022, 22, 8897. https://doi.org/10.3390/s22228897
Xu R, Ke C, Xue Y, Xu Y, Xue M, Ye J, Liu H, Chen M, Qu S, Yuan L. Simultaneous Measurement of Refractive Index and Temperature Based on SMF–HCF–FCF–HCF–SMF Fiber Structure. Sensors. 2022; 22(22):8897. https://doi.org/10.3390/s22228897
Chicago/Turabian StyleXu, Ronghui, Chengran Ke, Yipu Xue, Yifei Xu, Minmin Xue, Jingfu Ye, Houquan Liu, Ming Chen, Shiliang Qu, and Libo Yuan. 2022. "Simultaneous Measurement of Refractive Index and Temperature Based on SMF–HCF–FCF–HCF–SMF Fiber Structure" Sensors 22, no. 22: 8897. https://doi.org/10.3390/s22228897