Fiber in-line Fabry–Pérot interferometer for simultaneous measurement of reflective index and temperature

Xiaoqi Ni; Ming Wang; Dongmei Guo

doi:doi:10.3788/COL201614.050601

Chinese Optics Letters, 2016, 14 (5): 050601, Published Online: Aug. 6, 2018

Fiber in-line Fabry–Pérot interferometer for simultaneous measurement of reflective index and temperature

Xiaoqi Ni Ming Wang ^*Dongmei Guo

Author Affiliations

Jiangsu Key Laboratory on Opto-Electronic Technology, School of Physical Science and Technology, Nanjing Normal University, Nanjing 210023, China

Figures & Tables

Fig. 1. Microscopic image of (a) cross-sectional image of PCF and (b) sensing head.

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Xiaoqi Ni, Ming Wang, Dongmei Guo. Fiber in-line Fabry–Pérot interferometer for simultaneous measurement of reflective index and temperature[J]. Chinese Optics Letters, 2016, 14(5): 050601.

Fiber in-line Fabry–Pérot interferometer for simultaneous measurement of reflective index and temperature

Fig. 1. Microscopic image of (a) cross-sectional image of PCF and (b) sensing head.

Fig. 2. Reflective spectra of sensors with different lengths of PCF.

Fig. 3. Schematic diagram of the sensing head.

Fig. 4. Simulated reflective spectrum of the interferometer.

Fig. 5. Simulated FFT results of spectral responses with different nLiq.

Fig. 6. Simulated relationship between the P and RI of the solution.

Fig. 7. Reflective spectra of two sensors with different L1 and L2.

Fig. 8. FFT results of spectral responses with different solution RIs.

Fig. 9. Comparison of ΔP caused by ΔRI and ΔT.

Fig. 10. Reflective spectra at different temperatures.

Fig. 11. Comparison of Δλdip caused by ΔRI and ΔT.

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Fiber in-line Fabry–Pérot interferometer for simultaneous measurement of reflective index and temperature

Fig. 1. Microscopic image of (a) cross-sectional image of PCF and (b) sensing head.

Fig. 2. Reflective spectra of sensors with different lengths of PCF.

Fig. 3. Schematic diagram of the sensing head.

Fig. 4. Simulated reflective spectrum of the interferometer.

Fig. 5. Simulated FFT results of spectral responses with different nLiq.

Fig. 6. Simulated relationship between the P and RI of the solution.

Fig. 7. Reflective spectra of two sensors with different L1 and L2.

Fig. 8. FFT results of spectral responses with different solution RIs.

Fig. 9. Comparison of ΔP caused by ΔRI and ΔT.

Fig. 10. Reflective spectra at different temperatures.

Fig. 11. Comparison of Δλdip caused by ΔRI and ΔT.

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