Yong Wei, Yudong Su, Chunlan Liu, Lu Liu, Zongda Zhu, Yonghui Zhang. Micro-Displacement Optical Fiber Sensor Based on Surface Plasmon Resonance[J]. Laser & Optoelectronics Progress, 2018, 55(4): 040606
- Laser & Optoelectronics Progress
- Vol. 55, Issue 4, 040606 (2018)
Fig. 1. Sketch diagram of micro-displacement fiber sensing probe
Fig. 2. Refractive index distribution of the graded-index multimode fiber
Fig. 3. Beam path in the graded-index multimode fiber
Fig. 4. SPR transmission spectra under different thicknesses of gold film
Fig. 5. (a) SPR transmission spectra under different displacements by simulation; (b) resonance wavelength as a function of displacement
Fig. 6. (a) Image of the fiber sensing probe; (b) sketch diagram of the experiment system
Fig. 7. (a) SPR transmission spectra under different displacements by experiment; (b) resonance wavelength as the function of displacement
Fig. 8. (a)~(c) Spectra change under different fiber polishing angles β and different refractive indexes of liquid; (d) comparison between simulated (S) and experimental (E) results of resonance wavelength
Fig. 9. Resonance wavelength as a function of displacement when β=12° and n=1.350
|
Table 1. Performance comparison of optical fiber micro-displacement sensors
Set citation alerts for the article
Please enter your email address
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20