光学学报, 2019, 39 (3): 0306001, 网络出版: 2019-05-10
基于七芯光纤和少模光纤拼接结构的曲率传感测量 
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Curvature Sensing Measurement Based on Seven-Core Fiber and Few-Mode Fiber Splicing Structure
图 & 表
图 2. 横截面显微镜图像。(a) FMF; (b) SCF
Fig. 2. Microscope images of cross section. (a) FMF; (b) SCF
图 3. 不同传感头结构示意图及显微镜图像。(a)直接型示意图;(b)同向错位拼接型示意图;(c)异向错位拼接型示意图;(d)直接结构的显微镜图像;(e)错位拼接结构的显微镜图像
Fig. 3. Structural diagrams and microscope images of different sensing heads.(a) Straight type;(b) same direction mismatch type;(c) different direction mismatch type; (d) microscope image of straight type; (e) microscope image of mismatch type
图 4. 传感器A的测试结果。(a)光谱;(b)频谱
Fig. 4. Test results of sensor A. (a) Optical spectrum; (b) frequency spectrum
图 5. 传感器B的测试结果。(a)光谱;(b)频谱
Fig. 5. Test results of sensor B. (a) Optical spectrum; (b) frequency spectrum
图 6. 传感器C的测试结果。(a)光谱;(b)频谱
Fig. 6. Test results of sensor C. (a) Optical spectrum; (b) frequency spectrum
图 8. 传感器A的实验结果。(a)光谱随着曲率的变化;(b)数据拟合结果
Fig. 8. Experimental results of sensor A. (a) Spectrum versus curvature; (b) data fitting results
图 9. 传感器B的实验结果。(a)光谱随着曲率的变化;(b)数据拟合结果
Fig. 9. Experimental results of sensor B. (a) Spectrum versus curvature; (b) data fitting results
表 1不同熔接方式下的传感灵敏度对比
Table1. Sensing sensitivity comparison among different splicing methods
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表 2不同传感结构的传感器灵敏度
Table2. Sensor sensitivity comparison for different sensing structures
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许西宁, 陈雍君. 基于七芯光纤和少模光纤拼接结构的曲率传感测量[J]. 光学学报, 2019, 39(3): 0306001. Xining Xu, Yongjun Chen. Curvature Sensing Measurement Based on Seven-Core Fiber and Few-Mode Fiber Splicing Structure[J]. Acta Optica Sinica, 2019, 39(3): 0306001.
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