材料科学
微流控
干涉测量
熔接
光纤传感器
光学
光纤
多模光纤
纤维
光电子学
纳米技术
物理
复合材料
作者
Miaoling Yang,Yuan Yao,Hao Zhang,Xiangqian Hu,Wei Lin,Бо Лю,Haifeng Liu
出处
期刊:Optical Engineering
[SPIE - International Society for Optical Engineering]
日期:2022-07-07
卷期号:61 (07)
被引量:1
标识
DOI:10.1117/1.oe.61.7.077101
摘要
We propose and experimentally demonstrate an in-line microfluidic sensor based on a dual S-taper multimode fiber interferometer (MFI) for glucose sensing. The dual S-taper MFI was fabricated by splicing two S-shaped fiber tapers with a commercially available fusion splicer. To realize in-line microfluidic sensing, the sensor was encapsulated into a capillary with the inlet and outlet to pump in and out the glucose sample solution using a syringe. Fourier frequency spectra of the transmission spectra under air and deionized water environments showed that multiple high-order modes simultaneously participated in the modal interference process. Experimental results indicated that the interference dip wavelength sensitivity reached 0.276 nm / ( g / dL ) for the glucose concentration ranging from 0 to 25.0 g / dL. Our proposed glucose sensor has several advantages such as a compact structure, ease of fabrication, and low cost, which make it a promising candidate for in-line glucose sensing and other microfluidic sensing applications.
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