Open AccessMagneto-optical sensor based on the bandgap effect of a hollow-core photonic crystal fiber injected with Fe3O4
Author(s) -
Rowida A. Aobaid,
Humaira Hussain
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/871/1/012068
Subject(s) - photonic crystal fiber , materials science , core (optical fiber) , photonic crystal , wavelength , magnetic field , optoelectronics , optical fiber , laser , band gap , optics , composite material , physics , quantum mechanics
A magnetic field sensor, using a hollow-core photonic crystal fiber (HC-PCF), based on the bandgap effect was designed and experimentally demonstrated. The water-based Fe 3 O 4 was infiltrated into the core and the holes of the HC-PCF. The magnetic fluid was prepared with a concentration of 0.6mg/ml. A diode laser with a wavelength 532nm was used as a light source. Two types of HC-PCF were used: HC-1550-19 PCF and HC-800-02 PCF. The sensitivity was tested for a magnetic field that ranges from 0 mT to 24.5 mT. The results demonstrate that the sensitivity of the proposed sensors was 119.95 pm/mT and 151.27 pm/mT for HC-800-02 PCF and HC19-1550 PCF, respectively.