Type

Journal Article

Authors

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

Subjects

Physics

Topics
magnetic fluid sagnac loop fiber laser sensor fiber bragg grating electrical and computer engineering fiber bragg grating fbg physical sciences and mathematics microfiber coupler

Temperature-Compensated Magnetic Field Sensing with a Dual-Ring Structure Consisting of Microfiber Coupler-Sagnac Loop and Fiber Bragg Grating - Assisted Resonant Cavity (2019)

Abstract A novel temperature-compensated magnetic field sensor based on a ring erbium-doped fiber laser combined with a fiber Bragg grating (FBG) and a Sagnac loop containing a microfiber coupler (MFC) and magnetic fluid is proposed and investigated. Thanks to the dual-ring structure of the MFC-Sagnac loop and the FBG-assisted resonant cavity, the output of the structure has two distinct laser peaks. In addition to the magnetic field sensing capability, the proposed structure can simultaneously provide temperature information. The maximum experimentally demonstrated sensitivity to a magnetic field determined from the spectral shift of one laser peak is 102 pm/mT in the magnetic field range from 0 to 60 mT. The spectral position of the other laser peak is independent of the magnetic field but shifts toward longer wavelengths with temperature with a sensitivity of 18 pm/°C. The proposed magnetic field sensor is advantageous for applications requiring measurement accuracy over a wide magnetic field range with a compensating of temperature information.
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Full list of authors on original publication

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

Experts in our system

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