López Cardona, Juan DayronVázquez García, CarmenSánchez Montero, DavidContreras Lallana, Pedro2024-01-272024-01-272018-02-01J. D. López-Cardona, C. Vázquez, D. S. Montero and P. C. Lallana, "Remote Optical Powering Using Fiber Optics in Hazardous Environments," in Journal of Lightwave Technology, vol. 36, no. 3, pp. 748-754, 1 Feb.1, 2018, doi: 10.1109/JLT.2017.2776399.0733-8724https://hdl.handle.net/10115/29059Potential niches for a power-over-fiber (PoF) technique can be found in hazardous areas that require controlling unauthorized access to risk areas and integration of multiple sensors, in scenarios avoiding electromagnetic interference, and the presence of ignition factors. This paper develops a PoF system that provides galvanic isolation between two ends of a fiber for remotely powering a proximity sensor as a proof of concept of the proposed technology. We analyze scalability issues for remotely powering multiple sensors in a specific application for the hazardous environment. The maximum number of remote sensors that can be optically powered and the limiting factors are also studied; considering different types of multimode optical fibers, span lengths, and wavelengths. We finally address the fiber mode field diameter effect as a factor that limits the maximum power to be injected into the fiber. This analysis shows the advantages of using step-index versus graded-index fibers.engAttribution 4.0 Internationalhttps://creativecommons.org/licenses/by/4.0/Optical fiber sensorsOptical fibersOptical fiber networksinfo:eu-repo/semantics/article10.1109/JLT.2017.2776399info:eu-repo/semantics/openAccess