Magnetic Field Sensor Based on Nano-Terbium-Oxide Coated Long-Period Fiber Grating

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

IEEE Photonics Technology Letters Pub Date : 2025-03-28 DOI:10.1109/LPT.2025.3574243

Yan Hua Dong;Mei Chen;Cai Hong Huang;Wei Qi Wang;Bin Chen;Yi Huang;Yan Hua Luo;Ting Yun Wang

引用次数: 0

Abstract

A novel magnetic field sensor based on long-period fiber gratings (LPFG) coated with terbium oxide nanofilms is proposed. Theoretical analysis and numerical simulation of the four-layer cylindrical waveguide’s hybrid modes is investigated to achieve highly sensitive transition regions versus the thickness and refractive index of the film coated on LPFG. In this work, uniform and dense Tb₂O₃ films are deposited on the LPFG using atomic layer deposition (ALD), and it shows that the sensor achieved an exceptional magnetic field sensitivity of 0.17 nm/mT when coated with 1200 layers of Tb₂O₃. The combination of LPFG and terbium oxide materials appears to be highly promising for applications in magnetic field sensing.

查看原文本刊更多论文

基于纳米氧化铽涂层长周期光纤光栅的磁场传感器

提出了一种基于氧化铽纳米膜涂层的长周期光纤光栅（LPFG）磁场传感器。本文对四层圆柱波导的混合模式进行了理论分析和数值模拟，以获得高灵敏度的过渡区与LPFG表面涂层厚度和折射率的关系。在这项工作中，使用原子层沉积（ALD）在LPFG上沉积了均匀致密的Tb2O3薄膜，结果表明，当涂覆1200层Tb2O3时，传感器的磁场灵敏度达到0.17 nm/mT。LPFG与氧化铽材料的结合在磁场传感方面具有很大的应用前景。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

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.