Work

Temperature-compensated magnetic field sensor based on hollow core bragg fiber fabry-perot interferometer

Year: 2025

Type: article

Abstract: A temperature-compensated magnetic field sensor based on a hollow core Bragg fiber (HCBF) Fabry-Perot interferometer (FPI) is proposed. The two ends of the HCBF are fused with optical single-mode fibers (SMF) and adhered to magnetostrictive rods. The temperature and magnetic field response can be demodulated by 2 × 2 sensitivity matrix method, achieving multiparametric demodulation of dual parameters. Experimental results indicate that the error rate of demodulated magnetic field is only 1.9%, while the error rate of demodulated temperature is only 0.8%. The ease of fabrication, high accuracy and temperature compensation suggest that the proposed fiber sensor is suitable for practical magnetic field sensing applications.

Source: Applied Physics B

DOI: 10.1007/s00340-025-08417-y

Authors: Xiaolu Chen, Shengnan Wu, Nan Li, Xiaokun Qian, Liu Liu, Sailing He

Institutions: South China Normal University, Zhejiang University, KTH Royal Institute of Technology

Language: English

Topic: Advanced Fiber Optic Sensors

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $4,090

Funders: National Natural Science Foundation of China, Key Research and Development Program of Zhejiang Province