| Author(s): |
Fujiwara, Eric
;
Cabral, Thiago D.
;
Cordeiro, Cristiano M. B.
;
IEEE
Total Authors: 4
|
| Document type: | Journal article |
| Source: | 2019 SBFOTON INTERNATIONAL OPTICS AND PHOTONICS CONFERENCE (SBFOTON IOPC); v. N/A, p. 5-pg., 2019-01-01. |
| Abstract | |
Optical fiber specklegram sensors explore the spatiotemporal properties of the speckle pattern projected from a multimode fiber due to the interference between the several propagating modes. Albeit their apparent noisy nature, the speckle fields carry detailed and reproducible information about the fiber status. Specklegram changes can be analyzed to obtain very sensitive measurements with simple interrogation schemes. In this paper, different setups of fiber specklegram sensors for assessing the physical and chemical properties of liquids, such as refractive index, viscosity, and evaporation rate, are presented. The experiments are carried out using both silica multimode fibers and structured waveguides, whereas the output speckle fields are processed by means of correlation and image processing techniques. (AU) | |
| FAPESP's process: | 17/25666-2 - Development of an optical fiber force myography sensor for applications in human-robot interfaces |
| Grantee: | Eric Fujiwara |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 14/50632-6 - Surface-plasmon resonance sensors based on microstructured optical fiber |
| Grantee: | Cristiano Monteiro de Barros Cordeiro |
| Support Opportunities: | Regular Research Grants |