Tosi, DanieleMolardi, CarloBlanc, WilfriedPaixão, TiagoAntunes, PauloMarques, Carlos2021-04-152021-04-152020-05Tosi, D., Molardi, C., Blanc, W., Paixão, T., Antunes, P., & Marques, C. (2020). Performance Analysis of Scattering-Level Multiplexing (SLMux) in Distributed Fiber-Optic Backscatter Reflectometry Physical Sensors. Sensors, 20(9), 2595. https://doi.org/10.3390/s200925951424-8220https://doi.org/10.3390/s20092595https://www.mdpi.com/1424-8220/20/9/2595http://nur.nu.edu.kz/handle/123456789/5359Optical backscatter reflectometry (OBR) is a method for the interrogation of Rayleigh scattering occurring in each section of an optical fiber, resulting in a single-fiber-distributed sensor with sub-millimeter spatial resolution. The use of high-scattering fibers, doped with MgO-based nanoparticles in the core section, provides a scattering increase which can overcome 40 dB. Using a configuration-labeled Scattering-Level Multiplexing (SLMux), we can arrange a network of high-scattering fibers to perform a simultaneous scan of multiple fiber sections, therefore extending the OBR method from a single fiber to multiple fibers. In this work, we analyze the performance and boundary limits of SLMux, drawing the limits of detection of N-channel SLMux, and evaluating the performance of scattering-enhancement methods in optical fibers.enAttribution-NonCommercial-ShareAlike 3.0 United Statesoptical fiber sensorsoptical backscatter reflectometry (OBR)distributed sensorsscattering-level multiplexingRayleigh scatteringResearch Subject Categories::TECHNOLOGYArticle