A new approach to sensing low electric field using optical fibers’ beam-deflection configuration with BiFe0.9Co0.1O3 nanoparticles as probe and determination of polarisation

Design, experimental demonstration and modeling fiber ring resonator device with fiber cantilever-deflection probe for sensing surrounding electric field

“…Thus, the optical fiber circuit so formed acts as the Fabry-Perot loop with two series coupled cavities -a fiber loop with a variable air-gap cavity. The output is taken from direct port (port 3) as shown in the Fig 1 . In our experimental setup, the coated length of the fiber is 1± 0.1 cm with coated thickness of 0.32 µm, as optimized from our previously reported single cantilever arrangement [27]. Design, experimental demonstration and modeling fiber ring resonator device with fiber cantilever...…”

“…From our previous study, it has been established that the deflection of the coated fiber varies nearly linearly with applied electric field (E), i.e. ∆ = pE ( p = constant) in the small deflection limit [27]. We modeled the theoretical response of our experimental scheme, shown in for the lower regime of applied electric field.…”

“…For fabricating such sensors, the key issue is to choose an appropriate probe material that exhibits a higher response after interaction with the applied electric field. We choose cobalt doped bismuth ferrite nanoparticles as electric probe material as reported in our previous findings [27].…”

Corrosion Sensor Using Metallic Double Layer in Optical Fiber

“…As such, it is suitable for use in highly controlled environments such as nuclear or chemical plants [7]. Currently, optical fiberbased sensors are used to monitor various physical and chemical properties such as humidity [8], microbends [9], [10], electric field [11], [12], temperature [13], [14], pressure [ 15], magnetic field [16], gas [17], [18], corrosion [19]- [21] among others.…”