熔接
干涉测量
光学
逐渐变细
光纤
材料科学
马赫-曾德尔干涉仪
温度测量
干扰(通信)
物理
电信
计算机科学
量子力学
计算机图形学(图像)
频道(广播)
作者
Tianqi Liu,Jing Wang,Yipeng Liao,Lei Yang,Shanshan Wang
出处
期刊:Optics Express
[The Optical Society]
日期:2019-08-06
卷期号:27 (17): 23905-23905
被引量:42
摘要
Combined with non-adiabatic tapering and mode field mismatch between two different fibers, a splicing point tapered fiber Mach-Zehnder interferometer is proposed. Theoretically, two sensing units are carefully designed for dual-parameter sensing, and mode exciting and evolution in fibers are analyzed and shown dynamically. In experiment, transmission spectrum is obtained with two sets of clear interference as designed. After a simple capsulation, simultaneous measurement of seawater temperature and salinity are realized with sensitivities of -994.83pm/°C and 290.47pm/‰, respectively. Additionally, short response time of 33ms and good repeatability are also demonstrated. And effects of encapsulation on avoiding strain and press are verified experimentally. The MZI demonstrated here shows advantages of low cost, easy fabrication, simple construction, compact and robust structure, and dual-parameter sensing with high sensitivity and fast response.
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