Abstract
A novel ultra-sensitive liquid-level indicator using an etched chirped fiber Bragg grating is experimentally demonstrated with a sensitivity of 1.214 nm/mm for detecting tens of micro-meter liquid-level variation. The operation mechanism is based on the superposition wavelength-peak shift created by the overlap between the spectrum of the etched CFBG section immersed in the liquid and the spectrum of the rest of the grating in air. This sensor may be used to precisely measure the liquid-level variation in bio-hazardous systems or industrial containers that demand accurate interrogation of the amounts of the contents.
| Original language | English |
|---|---|
| Article number | 2494611 |
| Pages (from-to) | 268-271 |
| Number of pages | 4 |
| Journal | IEEE Photonics Technology Letters |
| Volume | 28 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2016 Feb 1 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering
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Chang, H. Y., Chang, Y-C., Sheng, H. J., Fu, M. Y., Liu, W. F., & Kashyap, R. (2016). An ultra-sensitive liquid-level indicator based on an etched chirped-fiber bragg grating. IEEE Photonics Technology Letters, 28(3), 268-271. [2494611]. https://doi.org/10.1109/LPT.2015.2494611