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解 决 方 案
从式(8)和式(9)可以看出,通过观测两个谐振谷波长的移 resonance based ¯ber optic chemical and biosensors utili-
动量,即可同时得出折射率和温度的变化量,也就是说,该传感器 zing bulk and nanostructures. Optics & Laser Technology,
实现了对溶液温度和折射率的同时测量,并且解决了折射率与温 2018,101: 144-161
度之间的交叉敏感问题.因此本文提出的传感器的折射率测量灵 7 Wang X, Chen D, Li H, Feng G, Yang J. In-line Mach-Zehnder
敏度为1764.3nm/RIU,温度灵敏度达到了-1.02nm/°C.由于本 interferometric sensor based on a seven-core optical¯ber.
测试系统中所采用的海洋光学光谱仪对波长的分辨力为1nm,所 IEEE Sensors Journal, 2017, 17(1): 100-104
-4
以该传感器的折射率分辨力为5.668*10 RIU,而温度分辨力为 8 Bai Y, Qi Y, Dong Y, Jian S. Highly sensitive temperatureand
0.98°C. pressure sensor based on Fabry-Perot interference. IEEE
Photonics Technology Letters, 2016, 28(21): 2471-2474
三、总结 9 Zhang Z, Shen C, Li L. Tem-
本文提出了一种反射式光 perature-independent ber-
纤SPR传感器来同时测量液体的 Bragggrating-based atmosphe-
折射率和温度.传感器的折射率 ric pressure sensor. Optics
灵敏度为1764.3nm/RIU,温度灵 Communications, 2018, 411: 1
敏度达到了-1.02nm/°C,而且 08-113
该传感器具有良好的重复性和 10 Wei Y, Su Y, Liu C,et al.
稳定性.最后我们引入双波长矩 Segmented detection SPR
阵解决了温度对折射率测量的 sensor based on seven-core
交叉影响.这种反射式的光纤 ¯ber. Optics Express, 2017,
SPR折射率和温度传感器将在生 25(18):21841-21850
物医学,环境监测等许多领域具 11 Ding Z,Lang T,Wang Y,Zhao
有广泛的应用前景. C. Surface plasmon resonan-
ce refractive index sensor
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58 网络电信 二零一九年四月