Work

Passive temperature-compensated fiber Fabry-Perot magnetic field sensor

Year: 2024

Type: article

Abstract: A passive temperature-compensated magnetic field sensor based on the material thermal-optics effect has been proposed. The proposed structure is easy to fabricate, consisting of only two single-mode optical fibers adhered to a magnetostrictive rod and the Fabry-Perot (FP) cavity filled with polydimethylsiloxane (PDMS). Benefitting from the negative thermal-optics coefficient of PDMS, the temperature cross-sensitivity of the sensor decreased from 351.02 pm/°C to 12.59 pm/°C, while exhibiting a high magnetic field sensitivity of 160.66 pm/[email protected] mT. The proposed sensor avoids complex control systems, composite structures, and bulky packaging. This feature effectively compensates for temperature influences during magnetic field detection, making it an ideal candidate for stable magnetic field sensors in practical applications.

Source: Optics Express

DOI: 10.1364/oe.542976

Authors: Xiaoli Chen, Shengnan Wu, Nan Li, Liu Liu, Sailing He

Institutions: South China Normal University, NingboTech University

Language: English

Topic: Advanced Fiber Optic Sensors

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,270

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