Title :
Optical Fiber Cladding Ring Magnetic Field Sensor
Author :
Childs, Paul ; Candiani, Alessandro ; Pissadakis, Stavros
Author_Institution :
Inst. of Electron. Struct. & Laser, Found. of Res. & Technol.-Hellas, Chania, Greece
fDate :
7/1/2011 12:00:00 AM
Abstract :
A magnetic field sensor utilizing a ferrofluid encapsulated fiber with a ring resonance coupling to and from the cladding modes is demonstrated. The sensor responds to magnetic fields aligned in a certain direction by changes to the visibility of fringes of its interference spectrum. An accuracy of 1.4 × 10-3 T over the range of 0.03-0.14 T is achieved.
Keywords :
magnetic field measurement; magnetic fluids; magnetic sensors; optical fibre cladding; ferrofluid encapsulated fiber; interference spectrum; optical fiber cladding; ring magnetic field sensor; ring resonance coupling; Gratings; Magnetic domains; Magnetic resonance; Optical sensors; Optical variables control; Refractive index; Saturation magnetization; Blazed fiber Bragg gratings; ferrofluids; fiber sensors; harmonic analysis; magnetic field detection;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2011.2143397
