Chen Zheng, Wenlin Feng, Sijie He, Bangxing Li. Optical fiber Michelson interference sensor for measuring refractive index[J]. Infrared and Laser Engineering, 2022, 51(5): 20210327
- Infrared and Laser Engineering
- Vol. 51, Issue 5, 20210327 (2022)
Fig. 1. Schematic diagram of experimental device
Fig. 2. Interference spectra of sensors with different lengths
Fig. 3. Schematic diagram of the FFT spectrum of the sensing structure
Fig. 4. Stability of the sensor in water
Fig. 5. (a) Spectral shift diagram of refractive index of sensor; (b) Refractive-index linearity
Fig. 6. Temperature sensitivity
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