Fiber Microcavity Magnetic Field Vector Sensor With Temperature Compensation Using a FBG

IF 2.3 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Photonics Technology Letters Pub Date : 2024-12-05 DOI:10.1109/LPT.2024.3509920

Guiyu Wang;Yao Wu;Xinhang Guan;Xuefeng Chen;Xiujuan Yu

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引用次数: 0

Abstract

A magnetic fluid filled fiber microcavity magnetic field vector sensor cascaded with a FBG is proposed for simultaneous measurement of magnetic field and temperature. The microcavity Mach-Zehnder interferometer (MZI) structure is formed through the splicing three sections of single-mode fibers with a large lateral offset. Due to the axial asymmetry structure, the microcavity MZI can recognize the direction change of magnetic field and realize vector sensing. The maximum sensitivity to magnetic field direction is −0.275 nm/°. Through monitoring the spectral shifts of the MZI and FBG, we can measure magnetic field and temperature simultaneously. The sensor exhibits the magnetic field and temperature sensitivities of −2.144 nm/mT in the range of 10 to 15 mT and 1.751 nm/°C in the range of

$22.5~^{\circ }$

C to

$55~^{\circ }$

C. Additionally, the temperature sensitivity of FBG is 0.0098 nm/°C. The proposed fiber magnetic field vector sensor offers advantages such as high sensitivity, compact structure and easy to fabrication, making it highly promising in the applications of magnetic field sensing.

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光纤光栅温度补偿光纤微腔磁场矢量传感器

提出了一种基于光纤光栅级联的磁流体填充光纤微腔磁场矢量传感器，用于同时测量磁场和温度。微腔Mach-Zehnder干涉仪（MZI）结构是由三段具有较大横向偏移的单模光纤拼接而成。由于其轴向不对称结构，微腔MZI可以识别磁场方向变化，实现矢量感知。对磁场方向的最大灵敏度为- 0.275 nm/°。通过监测MZI和FBG的谱移，可以同时测量磁场和温度。该传感器在10 ~ 15 mT范围内的磁场和温度灵敏度为- 2.144 nm/mT，在$22.5~^{\circ}$ C ~ $55~^{\circ}$ C范围内的温度灵敏度为1.751 nm/°C，光纤光栅的温度灵敏度为0.0098 nm/°C。本文提出的光纤磁场矢量传感器具有灵敏度高、结构紧凑、制作方便等优点，在磁场传感领域具有广阔的应用前景。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Photonics Technology Letters 工程技术-工程：电子与电气

CiteScore

5.00

自引率

3.80%

发文量

404

审稿时长

2.0 months

期刊介绍： IEEE Photonics Technology Letters addresses all aspects of the IEEE Photonics Society Constitutional Field of Interest with emphasis on photonic/lightwave components and applications, laser physics and systems and laser/electro-optics technology. Examples of subject areas for the above areas of concentration are integrated optic and optoelectronic devices, high-power laser arrays (e.g. diode, CO2), free electron lasers, solid, state lasers, laser materials'' interactions and femtosecond laser techniques. The letters journal publishes engineering, applied physics and physics oriented papers. Emphasis is on rapid publication of timely manuscripts. A goal is to provide a focal point of quality engineering-oriented papers in the electro-optics field not found in other rapid-publication journals.