Temperature and voltage sensing based on a tapered optical fiber device with the liquid crystal cladding
Citation
Korec, J., Stasiewicz, K.A., Jaroszewicz, L.R., Piecek, W., & Kula, P. (2020). Temperature and voltage sensing based on a tapered optical fiber device with the liquid crystal cladding. Optical Fiber Technology, 56, 102190. doi: 10.1016/j.yofte.2020.102190
Keywords
- Temperature sensing
- Voltage sensing
- Tapered fiber
- Liquid crystal (LC)
- Optical fiber device
- Light transmission
- Electric field modulation
- Refractive index
- Spectral characteristics
- Response times (switching on and off)
- LC cell configuration
- Rubbing directory
- Evanescence field
- Dielectric anisotropy
- Nematic liquid crystal E7
- Biconical tapered fibers
- Fiber Optic Taper Element Technology (FOTET)
- Indium Tin Oxide (ITO) electrodes
- Polyimide alignment layer
- Climatic chamber
- Supercontinuum light source
Brief
This paper presents a tapered optical fiber device with a liquid crystal cladding for temperature and voltage sensing, demonstrating the modulation of light transmission through the device by both thermal and electric fields.
Summary
This paper explores a novel sensor based on a tapered optical fiber surrounded by a liquid crystal (LC) cladding, demonstrating its ability to sense both temperature and voltage. The LC's refractive index changes in response to applied electric fields and temperature variations, which in turn modulates the light transmission through the tapered fiber. The study analyzed the sensor's spectral characteristics and response times for different LC orientations, highlighting the potential of this hybrid device for sensing applications due to the electric field's ability to modulate the optical wave in a wide temperature and wavelength range.
Origin: https://sci.bban.top/pdf/10.1016/j.yofte.2020.102190.pdf#