{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,6]],"date-time":"2026-05-06T11:23:11Z","timestamp":1778066591147,"version":"3.51.4"},"reference-count":29,"publisher":"MDPI AG","issue":"15","license":[{"start":{"date-parts":[[2019,8,1]],"date-time":"2019-08-01T00:00:00Z","timestamp":1564617600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"ORAU program at Nazarbayev University","award":["LIFESTART"],"award-info":[{"award-number":["LIFESTART"]}]},{"name":"ORAU program at Nazarbayev University","award":["FOSTHER"],"award-info":[{"award-number":["FOSTHER"]}]},{"DOI":"10.13039\/501100001665","name":"Agence Nationale de la Recherche","doi-asserted-by":"publisher","award":["NanoSlim (ANR-17-17-CE08-0002)"],"award-info":[{"award-number":["NanoSlim (ANR-17-17-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"],"award-info":[{"award-number":["UID\/CTM\/50025\/2019"]}],"id":[{"id":"10.13039\/501100001871","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":["PD\/BD\/128265\/2016"],"award-info":[{"award-number":["PD\/BD\/128265\/2016"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Applied Sciences"],"abstract":"<jats:p>The characterization of Fiber Bragg Grating (FBG) sensors on a high-scattering fiber, having the core doped with MgO nanoparticles for polarization-dependent temperature sensing is reported. The fiber has a scattering level 37.2 dB higher than a single-mode fiber. FBGs have been inscribed by mean of a near-infrared femtosecond laser and a phase mask, with Bragg wavelength around 1552 nm. The characterization shows a thermal sensitivity of 11.45 pm\/\u00b0C. A polarization-selective thermal behavior has been obtained, with sensitivity of 11.53 pm\/\u00b0C for the perpendicular polarization (S) and 11.08 pm\/\u00b0C for the parallel polarization (P), thus having 4.0% different sensitivity between the two polarizations. The results show the inscription of high-reflectivity FBGs onto a fiber core doped with nanoparticles, with the possibility of having reflectors into a fiber with tailored Rayleigh scattering properties.<\/jats:p>","DOI":"10.3390\/app9153107","type":"journal-article","created":{"date-parts":[[2019,8,1]],"date-time":"2019-08-01T11:39:37Z","timestamp":1564659577000},"page":"3107","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":23,"title":["Fiber Bragg Grating (FBG) Sensors in a High-Scattering Optical Fiber Doped with MgO Nanoparticles for Polarization-Dependent Temperature Sensing"],"prefix":"10.3390","volume":"9","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9922-683X","authenticated-orcid":false,"given":"Carlo","family":"Molardi","sequence":"first","affiliation":[{"name":"School of Engineering, Nazarbayev University, 53 Kabanbay Batyr, Astana 010000, Kazakhstan"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0736-5849","authenticated-orcid":false,"given":"Tiago","family":"Paix\u00e3o","sequence":"additional","affiliation":[{"name":"Physics Department &amp; I3N, University of Aveiro, 3810-193 Aveiro, Portugal"}]},{"given":"Aidana","family":"Beisenova","sequence":"additional","affiliation":[{"name":"School of Engineering, Nazarbayev University, 53 Kabanbay Batyr, Astana 010000, Kazakhstan"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7900-0422","authenticated-orcid":false,"given":"Rui","family":"Min","sequence":"additional","affiliation":[{"name":"Intelligent Manufacturing Faculty, Wuyi University, Jiangmen, China"},{"name":"ITEAM Research Institute, Universitat Polit\u00e8cnica de Val\u00e8ncia, 46022 Val\u00e8ncia, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9129-3539","authenticated-orcid":false,"given":"Paulo","family":"Antunes","sequence":"additional","affiliation":[{"name":"Physics Department &amp; I3N, 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 &amp; I3N, University of Aveiro, 3810-193 Aveiro, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7512-3916","authenticated-orcid":false,"given":"Wilfried","family":"Blanc","sequence":"additional","affiliation":[{"name":"INPHYNI\u2013CNRS UMR 7010, Universit\u00e9 C\u00f4te d\u2019Azur, Parc Valrose, 06108 Nice, France"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6500-4964","authenticated-orcid":false,"given":"Daniele","family":"Tosi","sequence":"additional","affiliation":[{"name":"School of Engineering, Nazarbayev University, 53 Kabanbay Batyr, Astana 010000, Kazakhstan"},{"name":"Laboratory of Biosensors and Bioinstruments, National Laboratory Astana, 53 Kabanbay Batyr, Astana 010000, Kazakhstan"}]}],"member":"1968","published-online":{"date-parts":[[2019,8,1]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Othonos, A., and Kalli, K. 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