Title :
Temperature-Insensitive Magnetic Field Sensor Based on Nanoparticle Magnetic Fluid and Photonic Crystal Fiber
Author :
Zu, Peng ; Chan, Chi Chiu ; Lew, Wen Siang ; Hu, Limin ; Jin, Yongxing ; Liew, Hwi Fen ; Chen, Li Han ; Wong, Wei Chang ; Dong, Xinyong
Author_Institution :
Sch. of Chem. & Biomed. Eng., Nanyang Technol. Univ., Singapore, Singapore
fDate :
4/1/2012 12:00:00 AM
Abstract :
A novel magnetic field sensor based on the magnetic fluid and Mach-Zehnder interferometer is proposed. The sensor takes advantage of the tunable refractive index property of the magnetic fluid and the modal interference property of the collapsed photonic crystal fiber. The achieved sensitivity and resolution of the sensor are 2.367 pm/Oe and 4.22 Oe, respectively. The magnetic field sensor is insensitive to the temperature variation with a temperature coefficient of 3.2 pm/°C.
Keywords :
Mach-Zehnder interferometers; holey fibres; magnetic fluids; magnetic sensors; nanoparticles; nanophotonics; photonic crystals; refractive index; Mach-Zehnder interferometer; modal interference property; nanoparticle magnetic fluid; photonic crystal fiber; refractive index; temperature-insensitive magnetic field sensor; Interference; Mach-Zehnder interferometers; Magnetic fields; Magnetic liquids; Optical fiber sensors; Photonic crystal fibers; Refractive index; Mach–Zehnder interferometer; magnetic field sensor; magnetic fluid; photonic crystal fiber;
Journal_Title :
Photonics Journal, IEEE
DOI :
10.1109/JPHOT.2012.2192473
