Up-taper-based Mach-Zehnder interferometer for temperature and strain simultaneous measurement
Up-taper-based Mach-Zehnder interferometer for temperature and strain simultaneous measurement
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DOI：
10.1364/ao.53.002691
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发表时间：
2014-04-20
期刊：
影响因子：
1.9
通讯作者：
Jian, Shuisheng
中科院分区：
文献类型：
--
作者：
Kang, Zexin;Wen, Xiaodong;Jian, Shuisheng
提出了一种基于上锥Mach-Zehnder干涉仪（MZI）的全光纤温度应变同步测量方案，并进行了实验验证。该结构由两个由过度融合拼接方法制成的上锥和一个短段内切的FBG组成。由于上锥度MZI和光纤光栅对温度和应变均匀变化的响应不同，因此可以通过实时监测透射谱来实现对这两个变量的同时测量。在0.01 nm波长分辨率下，温度分辨率可达0.311℃，平均应变分辨率为10.07 mu epsilon。(C) 2014年美国光学学会
A novel all-fiber sensing configuration for simultaneous measurements of temperature and strain based on the up-taper Mach-Zehnder interferometer (MZI) with an in-line embedded fiber Bragg grating (FBG) is proposed and experimentally demonstrated. This configuration consists of two up-tapers fabricated by an excessive fusion splicing method and a short segment of inscribed FBG. Due to the different responses of the up-taper MZI and the FBG to the uniform variation of temperature and strain, the simultaneous measurement for these two variables could be achieved by real-time monitoring the transmission spectrum. For 0.01 nm wavelength resolution, a resolution of 0.311 degrees C in temperature can be achieved, and the average strain resolution is 10.07 mu epsilon. (C) 2014 Optical Society of America