| Full text | |
| Author(s): |
Rosa, Lidia O.
;
Cordeiro, Cristiano M. B.
;
Fujiwara, Eric
Total Authors: 3
|
| Document type: | Journal article |
| Source: | 2024 SBFOTON INTERNATIONAL OPTICS AND PHOTONICS CONFERENCE, SBFOTON IOPC 2024; v. N/A, p. 3-pg., 2024-01-01. |
| Abstract | |
This paper reports a multimode optical fiber with core and cladding made of agar, a biodegradable and edible material. This waveguide has singular characteristics, such as reversible thermal gelation and moldability, and adjustable properties like refractive index and core/cladding diameters. Moreover, the fibers are biocompatible and present a low-cost and straightforward fabrication. We fabricate the cladding using a dip coating technique. Submerging a no-core agar fiber into melted agar-glycerol solutions with lower refractive indexes produces a surrounding layer with adjustable thickness. We characterized the optical loss through the cut-back technique, achieving 0.35 dB/cm at 632 nm. Results are comparable to other biodegradable waveguides, which suggests further applications in sensing, imaging, and illumination. (AU) | |
| FAPESP's process: | 23/09181-0 - Development of agar-based biodegradable optical fibers for sensing |
| Grantee: | Eric Fujiwara |
| Support Opportunities: | Regular Research Grants |