An Ultrasensitive Long-Period Fiber Grating-Based Refractive Index Sensor with Long Wavelengths
Abstract
:1. Introduction
2. Fabrication and Testing of the LPFG
2.1. Fabrication of the LPFG
2.2. The Testing of the LPFG
3. Results and Discussion
3.1. The Sensing Principle of the LPFG to the RI
3.2. Response of the LPFG to the Surrounding Media
3.3. Theoretical Analysis and Numerical Simulations
4. Conclusions
Acknowledgments
Author Contributions
Conflicts of Interest
References
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Ambient Media | Air and Water | Water and 5% Glycerol Solution | 5% Glycerol Solution and 55% Glycerol Solution | 55% Glycerol Solution and 65% Glycerol Solution | 65% Glycerol Solution and 75% Glycerol Solution | 75% Glycerol Solution and 80% Glycerol Solution | 80% Glycerol Solution and 85% Glycerol Solution |
---|---|---|---|---|---|---|---|
RI range | 1–1.3334 | 1.3334–1.3406 | 1.3406–1.4139 | 1.4139–1.4293 | 1.4293–1.4436 | 1.4436–1.4489 | 1.4489–1.4552 |
Shift of the left resonant peak (nm) | 26 | 2.4 | 7.2 | 12.8 | 20.8 | 17.2 | 33.2 |
RI sensitivity of the left resonant peak (nm/RIU) | 77.98 | 333.33 | 98.23 | 831.17 | 1454.55 | 3245.28 | 5269.84 |
Shift of the right resonant peak (nm) | 51.6 | 4.4 | 58.4 | 31.6 | 51.6 | 57.2 | - |
RI sensitivity of the right resonant peak (nm/RIU) | 154.77 | 611.11 | 796.73 | 2051.95 | 3608.39 | 10,792.45 | - |
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Li, Q.-S.; Zhang, X.-L.; Shi, J.-G.; Xiang, D.; Zheng, L.; Yang, Y.; Yang, J.-H.; Feng, D.; Dong, W.-F. An Ultrasensitive Long-Period Fiber Grating-Based Refractive Index Sensor with Long Wavelengths. Sensors 2016, 16, 2205. https://doi.org/10.3390/s16122205
Li Q-S, Zhang X-L, Shi J-G, Xiang D, Zheng L, Yang Y, Yang J-H, Feng D, Dong W-F. An Ultrasensitive Long-Period Fiber Grating-Based Refractive Index Sensor with Long Wavelengths. Sensors. 2016; 16(12):2205. https://doi.org/10.3390/s16122205
Chicago/Turabian StyleLi, Qiu-Shun, Xu-Lin Zhang, Jian-Guo Shi, Dong Xiang, Lan Zheng, Yan Yang, Jun-Hui Yang, Dong Feng, and Wen-Fei Dong. 2016. "An Ultrasensitive Long-Period Fiber Grating-Based Refractive Index Sensor with Long Wavelengths" Sensors 16, no. 12: 2205. https://doi.org/10.3390/s16122205
APA StyleLi, Q.-S., Zhang, X.-L., Shi, J.-G., Xiang, D., Zheng, L., Yang, Y., Yang, J.-H., Feng, D., & Dong, W.-F. (2016). An Ultrasensitive Long-Period Fiber Grating-Based Refractive Index Sensor with Long Wavelengths. Sensors, 16(12), 2205. https://doi.org/10.3390/s16122205