干涉测量
材料科学
马赫-曾德尔干涉仪
偏移量(计算机科学)
光纤
熔接
光学
制作
包层模式
单模光纤
光纤传感器
光电子学
保偏光纤
物理
计算机科学
程序设计语言
医学
替代医学
病理
作者
Xue Tian,Zhengrong Tong,Weihua Zhang,Lei Jing,Xue Wang,Peng Li,Meng Wu,Miaoyun Dong
出处
期刊:Optical Engineering
[SPIE - International Society for Optical Engineering]
日期:2022-09-06
卷期号:61 (09)
标识
DOI:10.1117/1.oe.61.9.097101
摘要
An in-line Mach–Zehnder interferometer (MZI) based on no-core fiber (NCF) with lateral offset for concentration sensing is presented and demonstrated. The in-line MZI is formed by splicing a section of NCF between two single-mode fibers (SMFs) with a lateral offset. The theoretical and simulation analysis results indicate that the interference dip originates from the mode coupling between the high-order mode LP01 and the high-order mode LP26. In the concentration ranges of 0% to 37%, 37% to 66%, and 66% to 82%, the glycerol concentration sensitivities are 0.166, 0.378, and 1.44 nm/%, respectively. The temperature sensitivity is 0.081 nm / ° C from 30°C to 80°C. Our sensor has the advantages such as ease of fabrication, high glycerol concentration sensitivity, and great stability, providing a practical and competitive solution for chemical sensing and food processing.
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