| Full text | |
| Author(s): |
Rosa, Lidia O.
;
Cordeiro, Cristiano M. B.
;
Fujiwara, Eric
Total Authors: 3
|
| Document type: | Journal article |
| Source: | 2024 LATIN AMERICAN WORKSHOP ON OPTICAL FIBER SENSORS, LAWOFS 2024; v. N/A, p. 2-pg., 2024-01-01. |
| Abstract | |
This work reports an agar-made, biodegradable optical fiber for electric current measurements. The agar's mineral impurities sustain the charges' flow through the fiber structure, causing refractive index modulation by thermo-optic effect. Moreover, doping the agar solution with NaCl improves the electrical conductivity and sensitivity. We interrogate the sensor response by specklegram analysis, yielding a time-constant reduction in the decaying correlation coefficient curves as the current magnitude increases. Furthermore, oscillations in the speckle pattern manifest for exceeding currents, possibly due to the formation of a dielectric layer within the fiber structure. (AU) | |
| FAPESP's process: | 23/09181-0 - Development of agar-based biodegradable optical fibers for sensing |
| Grantee: | Eric Fujiwara |
| Support Opportunities: | Regular Research Grants |