激光与光电子学进展, 2018, 55 (4): 040606, 网络出版: 2018-09-11
基于表面等离子体共振的微位移光纤传感器 
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Micro-Displacement Optical Fiber Sensor Based on Surface Plasmon Resonance
图 & 表
图 2. 渐变折射率多模光纤折射率分布
Fig. 2. Refractive index distribution of the graded-index multimode fiber
图 4. 不同金膜厚度下的SPR透射光谱
Fig. 4. SPR transmission spectra under different thicknesses of gold film
图 5. (a)仿真所得不同位移量产生不同的SPR共振光谱;(b) SPR共振波长随位移量的变化
Fig. 5. (a) SPR transmission spectra under different displacements by simulation; (b) resonance wavelength as a function of displacement
图 6. (a)微位移光纤传感探针的显微镜照片;(b)微位移实验系统示意图
Fig. 6. (a) Image of the fiber sensing probe; (b) sketch diagram of the experiment system
图 7. (a)实验所得不同位移量产生不同的SPR共振光谱;(b)SPR共振波长随位移量的变化
Fig. 7. (a) SPR transmission spectra under different displacements by experiment; (b) resonance wavelength as the function of displacement
图 8. (a)~(c)不同研磨角β和液体折射率n下的光谱变化;(d)仿真与实验的共振波长比较
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
表 1各类光纤位移传感器参数比较
Table1. Performance comparison of optical fiber micro-displacement sensors
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魏勇, 苏于东, 刘春兰, 刘璐, 朱宗达, 张永慧. 基于表面等离子体共振的微位移光纤传感器[J]. 激光与光电子学进展, 2018, 55(4): 040606. 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.
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