Simultaneous measurement of refractive index, strain and temperature using a tapered structure based on SMF
Simultaneous measurement of refractive index, strain and temperature using a tapered structure based on SMF
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使用基于 SMF 的锥形结构同时测量折射率、应变和温度
DOI：
10.1016/j.optcom.2017.09.096
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发表时间：
2018-03-01
影响因子：
2.4
通讯作者：
Li, Kunpu
中科院分区：
文献类型：
--
作者：
Zhang, Na;Xu, Wei;Li, Kunpu
提出了一种基于小型模态干涉仪（MMI）的新型光纤传感结构，可同时测量折射率（RI）、应变和温度。它主要基于马赫-曾德干涉仪（MZI），通过在一根单模光纤（SMF）中的两个相邻上锥度之间引入一个下锥度而形成。实验结果表明，RI灵敏度为131.93 nm/RIU，应变灵敏度为0.0007 nm/mu epsilon，温度灵敏度为0.0878 nm/℃。该传感器仅由廉价易得的SMF制成，整个制造过程仅包含切割和熔接，并且可以通过商用光纤熔接机很好地控制。 (C) 2017 Elsevier B.V. 保留所有权利。
A novel fiber-optic sensing structure based on miniaturized modal interferometer (MMI) for simultaneous refractive index (RI), strain and temperature measurement is proposed. It is mainly based on Mach-Zehnder interferometer (MZI) and formed by introducing a down taper between two adjacent up tapers in one single mode fiber (SMF). Experimental results demonstrate a RI sensitivity of 131.93 nm/RIU, a strain sensitivity of 0.0007 nm/mu epsilon and a temperature sensitivity of 0.0878 nm/degrees C respectively. The sensor is merely made of SMF which is cheap and available, and the whole fabrication process contains only cleaving and splicing and can be well controlled by a commercial fiber splicer. (C) 2017 Elsevier B.V. All rights reserved.