Page 30 - 网络电信2023年12月刊

表1 温度和折射率传感器性能比较 [5] Li D R, Wang N, Zhang T Y, et al . Label-free fiber
nanograting sensor for real-time in situ early monitoring
Temperature of cellular apoptosis[J]. Advanced Photonics, 2022,
Sensitization RI sensitivity Range 4(01): 7.
Sensor type sensitivity/ Year
material (nm/RIU) (℃) [6] Zhang J, Yuan J, Qu Y, et al. A surface plasmon
(nm/℃) resonance-based photonic crystal fiber sensor for
Proposed PDMS & Ag 2913.68 0.597 20-80 2023 simultaneously measuring the refractive index and
SPR-MZI [21] Au 1947.405 0.34 25.66-51 2022 temperature[J]. Polymers, 2022, 14(18):3893.
SPR-MZI [22] Au 1899 -1.4 27-43 2021 [7] Liu L, Zheng J, Deng S J, et al. Parallel polished
plastic optical fiber-based SPR sensor for simultaneous
SPR-MMI [18] Au 2061.6 0.0379 20-80 2020 measurement of RI and temperature[J]. IEEE Transactions
SPR-FPI [19] Au & PDMS 2565.4 0.394 20-80 2021 on Instrumentation and Measurement. 2021, 70: 1-8.
[8] Wada A, Tanaka. High resolution simultaneous measurement
of temperature and strain using a Fabry-Perot
FPI-SPR 结构使用SPR 效应测量折射率，灵敏度远大于文献 [16- interferometer in polarization maintaining fiber with
17,20] 使用MFFPI、MMI 结构测量折射率的灵敏度。同时，文献 [16- laser diodes[J]. Journal of Lightwave Technology, 2018,
36(4): 1011-1017.
17,20]
利用干涉效应测量温度和折射率存在严 [9] Lin H F, Liu F F, Guo H Y, et al. Ultra-highly sensitive
重的串扰，解调复杂。文献 [17] 具有良好的精确度但是需 gas pressure sensor based on dual sidehole fiber
interferometers with vernier effect[J], Optics Express,
要提供精确的环境温度。本文采用分离波段传感消除了两通道 2018, 26(22): 28763-28772.
间的串扰，并且针对传感通道的交叉敏感进行了相应的温度补 [10] Deng J, Wang D N. Ultra-sensitive strain sensor based on
femtosecond laser inscribed in fiber reflection mirrors
偿，相比文献 [16-17,20] 具有更高的测量精确度和更重要的应用价 and vernier effect [J]. Journal of Lightwave Technology,
值。 2019, 37(19): 4935-4939.
[11] Dong L G, Gang T T, Bian C, et al. A high sensitivity
optical fiber strain sensor based on hollow core
表2 乙醇热光系数测量值比较 tapering[J]. Optical Fiber Technology, 2020, 56: 102179.
Sensor type TOC(RIU/℃) Error/% Year [12] Bhardwaj V, Kishor K, Sharma A C. Tapered optical fiber
geometries and sensing applications based on Mach-Zehnder
Proposed Sensor -3.868×10-4 0.82 2023 interferometer: a review[J]. Optical Fiber Technology,
MMMI [17] -3.95×10-4 1.28 2021 2020, 58:102302.
SPR-MMI [18] -4.2×10-4 7.69 2020 [13] Oe R, Takeo M K, Taue S J, et al. Refractive index
MMI [16] -3.117×10-4 20.07 2018 sensing with temperature compensation by a multimode
MFFPI [20] -3.688×10-4 5.43 2015 interference fiber based optical frequency comb sensing
cavity[J]. Optics Express, 2019, 27(15): 21463.
[14] Lu L D, Xu Y J, Dong M L, et al. Birefringent
interferometer cascaded with PM-FBG for multiparameter
四、结 论 testing[J]. IEEE Sensors Journal, 2022, 22(1): 1-1.
本文提出并验证了一种级联式FPI-SPR 全光纤液体热光系 [15] 林洪太，张丽，刘欣，等. FBG 环形衰荡腔的温度传感动态特性
研究[J]. 光学学报， 2020，40(10): 1006003.
数传感器。该传感器温度传感单元采用密封的PDMS-Air-PDMS Lin H T, Zhang L, Liu X, et al. Research on dynamic
结构具有更高的温度灵敏度和稳定性，通过在无芯光纤侧面 characteristics of temperature sensing based on loop
ring-down cavity with FBG[J]. Acta Optica Sinica, 2020,
镀银纳米膜构成高灵敏度的折射率传感单元，并针对RI 通道 40(10): 1006003.
通过温度补偿消除了交叉敏感的影响。传感器在1.333~1.371 [16] Susana N, Marta S, Ferreira, et al. Determination of
thermo-optic coefficient of ethanol-water mixtures with
折射率范围和20~80℃温度范围内的RI 灵敏度为2913.13nm/ optical fiber tip sensor[J]. Optical Fiber Technology,
RIU，温度灵敏度为597pm/℃，线性度均达到99.7%。最后对无 2018, 45:276-279.
[17] Victor I R P, Pedro M V B, Daniel A M A, et al. Measuring
水乙醇的热光系数进行具体测试，测量误差为0.82%，具有很 the thermo-optic coefficient of liquids with athermal
高的测量精确度。实验结果表明，与相似光纤液体热光系数传 multimode interference devices[J]. IEEE Sensors Journal,
2021, 21(3):3004-3012.
感器相比，本文所提传感器有效解决了固有的串扰和交叉敏感 [18] Yu Z, Liu M J, Zhang Y X, et al. Simultaneous measurement
问题，具有更高的灵敏度和测量精确度，在生物医学和生物化 of temperature and refractive index based on a hybrid
surface plasmon resonance multimode interference fiber
学领域有着广泛的应用前景。 sensor[J]. Applied Optics, 2020, 59(4): 1225-1229.
参考文献 [19] Ya X, Zhan G, Xue J J, et al. Measurement of liquid
thermo-optical coefficient based on allfiber hybrid FPI-
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