Type

Journal Article

Authors

Yuliya Semenova
Gerald Farrell
Gang-Ding Peng
Qiang wu
Dejun Liu
Arun Mallik
Fangfang Wei

Subjects

Physics

Topics
polarization higher fluid field combination magnetic properties and materials magnetic field sensor fibre optics and optical communications magnetic fluid mf microfluidics microfiber coupler mfc optical sensors sensor engineering orientation high sensitivity electrical and computer engineering magnetic field environmental monitoring

Magnetic Field Sensor Based on a Combination of a Microfiber Coupler Covered with magnetic Fluid and a Sagnac Loop (2017)

Abstract This paper proposes a novel magnetic field sensor based on a microfiber coupler (MFC) combined with a magnetic fluid (MF) in a Sagnac loop formed from a polarization maintaining fiber (PMF). Thanks to the small (~2.6 μm) waist diameter of the MFC, the resulting interference is strongly influenced by the presence of the MF and this leads to the desirable high sensitivity of the structure to the applied magnetic field. The maximum magnetic field sensitivities of −100 pm/mT and −488 pm/mT have been experimentally demonstrated with the PMF lengths of 75 cm and 20 cm respectively in the range of magnetic field strengths from 0 to 200 mT. The dependence of the magnetic field orientation on the performance of the proposed sensor was also examined. The proposed magnetic field sensor is advantageous for applications requiring higher sensitivity over a wide magnetic field range.
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Full list of authors on original publication

Yuliya Semenova, Gerald Farrell, Gang-Ding Peng, Qiang wu, Dejun Liu, Arun Mallik, Fangfang Wei

Experts in our system

1
Yuliya Semenova
TU Dublin
Total Publications: 136
 
2
Gerald Farrell
TU Dublin
Total Publications: 212
 
3
Gang-Ding Peng
TU Dublin
Total Publications: 5
 
4
Qiang wu
TU Dublin
Total Publications: 90
 
5
Dejun Liu
TU Dublin
Total Publications: 24
 
6
Arun Mallik
TU Dublin
Total Publications: 26
 
7
Fangfang Wei
TU Dublin
Total Publications: 8