{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,15]],"date-time":"2025-11-15T17:13:37Z","timestamp":1763226817107,"version":"build-2065373602"},"reference-count":32,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2020,5,2]],"date-time":"2020-05-02T00:00:00Z","timestamp":1588377600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100012632","name":"Nazarbayev University","doi-asserted-by":"publisher","award":["FOSTHER (core: 090118FD5314)","EPICGuide (code: 240919FD3908)","SMARTER (code: 091019CRP2117)"],"award-info":[{"award-number":["FOSTHER (core: 090118FD5314)","EPICGuide (code: 240919FD3908)","SMARTER (code: 091019CRP2117)"]}],"id":[{"id":"10.13039\/501100012632","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001665","name":"Agence Nationale de la Recherche","doi-asserted-by":"publisher","award":["Nice-DREAM (ANR-14-CE07-0016-03)","NanoSlim (ANR-17-CE08-0002)"],"award-info":[{"award-number":["Nice-DREAM (ANR-14-CE07-0016-03)","NanoSlim (ANR-17-CE08-0002)"]}],"id":[{"id":"10.13039\/501100001665","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","doi-asserted-by":"publisher","award":["UID\/CTM\/50025\/2019","PD\/BD\/128265\/2016"],"award-info":[{"award-number":["UID\/CTM\/50025\/2019","PD\/BD\/128265\/2016"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Optical 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.<\/jats:p>","DOI":"10.3390\/s20092595","type":"journal-article","created":{"date-parts":[[2020,5,4]],"date-time":"2020-05-04T14:00:43Z","timestamp":1588600843000},"page":"2595","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":24,"title":["Performance Analysis of Scattering-Level Multiplexing (SLMux) in Distributed Fiber-Optic Backscatter Reflectometry Physical Sensors"],"prefix":"10.3390","volume":"20","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6500-4964","authenticated-orcid":false,"given":"Daniele","family":"Tosi","sequence":"first","affiliation":[{"name":"School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan 010000, Kazakhstan"},{"name":"Laboratory of Biosensors and Bioinstruments, National Laboratory Astana, Nur-Sultan 010000, Kazakhstan"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9922-683X","authenticated-orcid":false,"given":"Carlo","family":"Molardi","sequence":"additional","affiliation":[{"name":"School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan 010000, Kazakhstan"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7512-3916","authenticated-orcid":false,"given":"Wilfried","family":"Blanc","sequence":"additional","affiliation":[{"name":"INPHYNI-CNRS UMR 7010, Universite\u0301 Co\u0302te d\u2019Azur,   Parc Valrose, 06108 Nice, France"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0736-5849","authenticated-orcid":false,"given":"Tiago","family":"Paix\u00e3o","sequence":"additional","affiliation":[{"name":"Physics Department, I3N &amp; University of Aveiro, 3810-193 Aveiro, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9129-3539","authenticated-orcid":false,"given":"Paulo","family":"Antunes","sequence":"additional","affiliation":[{"name":"Physics Department, I3N &amp; University of Aveiro, 3810-193 Aveiro, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8596-5092","authenticated-orcid":false,"given":"Carlos","family":"Marques","sequence":"additional","affiliation":[{"name":"Physics Department, I3N &amp; University of Aveiro, 3810-193 Aveiro, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2020,5,2]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Othonos, A., and Kalli, K. 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