Jie Wang, Zongchen Zhao, Chao Jiang, Changning Liu, Simei Sun. Femtosecond Laser Precision Machining of Micropores in Single-Mode Fiber and Sensing Application[J]. Laser & Optoelectronics Progress, 2020, 57(11): 111425
- Laser & Optoelectronics Progress
- Vol. 57, Issue 11, 111425 (2020)
Fig. 1. Micrographs of columnar microholes. (a) Side view of single hole; (b) top view of single hole; (c) side view of two holes; (d) top view of two holes
Fig. 2. Schematic diagram of sensor optical path
Fig. 3. Reflection spectra of sensor. (a) L=70, 80, 90 μm; (b) L=80 μm
Fig. 4. Fourier frequency spectra of sensor
Fig. 5. Transmission spectra of sensor under change of refractive index
Fig. 6. Transmission spectral intensity of sensor under different refractive indices
Fig. 7. Schematic diagram of cryogenic device
Fig. 8. Spectra of sensor under temperature change
Fig. 9. Linear fitting at dip1 for cryogenic experiment
Fig. 10. Spectra of sensor under humidity change
Fig. 11. Linear fitting of humidity experiment at dip1
Fig. 12. Schematic diagram of refractive index device
Fig. 13. Spectra of sensor under refractive index change
Fig. 14. Linear fitting of refractive index experiment at dip1
Fig. 15. Schematic diagram of high temperature device
Fig. 16. Spectra of sensor under temperature change
Fig. 17. Linear fitting of high temperature experimental results at dip1
Fig. 18. Schematic diagram of gas pressure device
Fig. 19. Spectra of sensor under gas pressure change
Fig. 20. Linear fitting of gas pressure experimental results at dip1
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