CS/PAA涂层光纤马赫曾德干涉仪检测Cu2+

2021 19th International Conference on Optical Communications and Networks (ICOCN) Pub Date : 2021-08-23 DOI:10.1109/ICOCN53177.2021.9563688

Yanmei Tang, Qianqian Zhang, Xinyong Dong, C. Chan

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引用次数: 0

摘要

提出了一种基于两根微光纤级联形成的光纤马赫-曾德尔干涉仪(MZI)的光纤铜离子(Cu2+)传感器，并进行了实验验证。采用逐层自组装技术将壳聚糖/聚丙烯酸多层膜涂覆在MZI表面，实现MZI的表面功能化。当铜(II)离子浓度在0.005 ~ 0.1 mMol之间时，测量灵敏度为62.44 dB/mM，检出限为0.0086 mM。

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Cu2+ Detecting by Using Optical Fiber Mach-Zehnder Interferometer Coated with CS/PAA

Optical fiber copper (II) ions (Cu2+) sensor based on an optical fiber Mach-Zehnder interferometer (MZI) formed by cascading two micro fibers is proposed and experimentally demonstrated. The MZI is surface-functionized by coating a chitosan/polyacrylic acid multilayer film using a layer-by-layer self-assembly technology. The achieved measurement sensitivity and detection limit are 62.44 dB/mM and 0.0086 mM, respectively, when the copper (II) ions concentration is between 0.005 mMol and 0.1 mMol.

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2021 19th International Conference on Optical Communications and Networks (ICOCN)

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