Yusong ZHONG, Xinyong DONG, Pengbai XU, Jun YANG. Optical Fiber and Gelatin Based Fabry-Perot Interferometric Humidity Sensor[J]. Acta Photonica Sinica, 2021, 50(12): 1206003
- Acta Photonica Sinica
- Vol. 50, Issue 12, 1206003 (2021)
Fig. 1. Schematic diagram of the proposed sensing probe
Fig. 2. Micrograph of the proposed FPI sensing probe
Fig. 3. Experimental setup
Fig. 4. Spectra of the FPI sensing probe with different hollow core fiber lengths
Fig. 5. Spectra of the sensor at different relative humidity
Fig. 6. Variation of the sensor wavelength with relative humidity
Fig. 7. Repetitive experiment of the sensor
Fig. 8. Variation of the sensor wavelength with relative humidity at different temperatures
Fig. 9. Stability measurement results of the sensor at different relative humidity
Fig. 10. Variation of the sensor wavelength t with temperature
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Table 1. Performance comparison of some reported optical fiber humidity sensors
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