A MMF-TSMF-MMF Structure Coated Magnetic Fluid for Magnetic Field Measurement
- 19 August 2021
- journal article
- research article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 33 (19), 1105-1108
- https://doi.org/10.1109/lpt.2021.3106146
Abstract
An optical fiber Mach-Zehnder interferometer (MZI) coated by magnetic fluid (MF) is fabricated for magnetic field measurement. The interferometer is composed of multimode fiber-taper single mode fiber-multimode fiber (MTSM). The two MMFs play the role of a beam splitter and a coupler. The TSMF induces the generation of high-order cladding mode and enhances the recoupling ability of the interferometer. The transmission spectrum and cladding modes with different taper waist diameter are theoretically analyzed. Interference dips are sensitive to the alteration of magnetic field intensity when the taper waist diameter of interferometer is 34 μm. The highest sensitivity is up to -0.81 nm/mT at the magnetic field range of 8-17 mT.Keywords
Funding Information
- Joint Research Fund in Astronomy under cooperative agreement between the National Natural Science Foundation of China (NSFC) and Chinese Academy of Sciences (U2031130, U2031132, U1931206, U1831115)
- Natural Science Foundation of Heilongjiang Province (ZD2019H003)
- Fundamental Research Funds for the Central Universities to Harbin Engineering University
This publication has 22 references indexed in Scilit:
- Investigation on a compact in-line multimode-single-mode-multimode fiber structureOptics & Laser Technology, 2016
- A Magnetic Field Sensor Based on a Magnetic Fluid-Filled FP-FBG StructureSensors, 2016
- Simultaneous measurement of temperature and magnetic field based on a long period grating concatenated with multimode fiberApplied Physics Letters, 2015
- Magnetic Field Sensing Based on Magnetic-Fluid-Clad Multimode-Singlemode-Multimode Fiber StructuresSensors, 2014
- Optical fiber magnetic field sensor based on single-mode–multimode–single-mode structure and magnetic fluidOptics Letters, 2013
- Tunable magneto-optical wavelength filter of long-period fiber grating with magnetic fluidsApplied Physics Letters, 2007
- Tunable optical fiber filters with magnetic fluidsApplied Physics Letters, 2005
- Measurement of the refractive index of a magnetic fluid by the retroreflection on the fiber-optic end faceApplied Physics Letters, 2005
- Tunable optical switch using magnetic fluidsApplied Physics Letters, 2004
- Optical fibre long-period grating sensors: characteristics and applicationMeasurement Science and Technology, 2003