Yun Guo, Yuchun Wu, Jiahao Wang, Yingfang Zhang, Dongning Wang, Ben Xu. Highly sensitive gas-pressure sensor based on paralleled optical fiber Fabry-Perot interferometers[J]. Opto-Electronic Engineering, 2022, 49(8): 210420
- Opto-Electronic Engineering
- Vol. 49, Issue 8, 210420 (2022)
Fig. 1. (a) Schematic diagram and (b) micrograph of the proposed gas pressure sensor based on paralleled FPIs
Fig. 1. Relationship between resonate wavelength and gas pressure
Fig. 2. (a) Simulated reflection spectra of the sensing and reference FPIs, respectively; (b) The reflection spectra of the single sensing FPI at different gas pressures
Fig. 3. Calculated reflection spectra of the paralleled FPIs for gas pressure variation of 200 kPa
Fig. 4. Experimental setup for gas-pressure sensing
Fig. 5. (a) Measured reflection spectrum of the sensing and reference FPIs, respectively; (b) The reflection spectrum of the device with paralleled FPIs
Fig. 6. Response of the sensing FPI to gas pressure. (a) The reflection spectra at different pressures; (b) The relationship between resonances dip wavelength and gas pressure
Fig. 7. Response of the proposed device with paralleled FPIs to gas pressure. (a) Reflection spectra at different gas pressure; (b) Relationship between resonances dip wavelength and gas pressure
Fig. 8. (a) Envelopes of the reflection spectra of the device with paralleled FPIs at different gas pressures; (b) The relationship between resonances dip wavelength of the envelope and gas pressure
Fig. 9. Temperature response of the proposed device with paralleled FPIs. (a) Measured reflection spectra at different temperatures; (b) The relationship between resonances dip wavelength and temperature
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