Multi-Parameter Interferometric Sensor Based on a Reduced Diameter Core Axial Offseted Fiber
| Autor: | Hozianna C. B. Ximenes, Maria José Pontes, Rodolpho L. Silva, Carlos E. S. Castellani, Moisés R. N. Ribeiro, Anselmo Frizera-Neto |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
business.industry 02 engineering and technology Interference (wave propagation) Cladding (fiber optics) 01 natural sciences Temperature measurement Graded-index fiber Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials 010309 optics 020210 optoelectronics & photonics Optics Normalized frequency (fiber optics) Excited state 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering business Step-index profile Refractive index |
| Zdroj: | IEEE Photonics Technology Letters. 29:239-242 |
| ISSN: | 1941-0174 1041-1135 |
| DOI: | 10.1109/lpt.2016.2637870 |
| Popis: | We report an optical sensor based on the interference pattern created by an all-fiber Mach–Zehnder setup. This pattern is produced by the combination of the core and cladding modes that are excited on a fiber with reduced diameter fusion spliced to a single-mode fiber with a 4- $\mu \text{m}$ core axial offset. Discrete measurements of refractive index and temperature are achieved with sensitivities of 8.8 nm/refractive index units and 39.2 pm/°C, respectively, and also distributed measurements of liquid level up to 120 mm are made with a sensitivity of 6 pm/mm. |
| Databáze: | OpenAIRE |
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