{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,9]],"date-time":"2025-12-09T15:32:26Z","timestamp":1765294346492,"version":"build-2065373602"},"reference-count":31,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2007,11,26]],"date-time":"2007-11-26T00:00:00Z","timestamp":1196035200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Recent advances in devices and applications of high-birefringence fiber loopmirror sensors are addressed. In optical sensing, these devices may be used as strain andtemperature sensors, in a separate or in a simultaneous measurement. Other describedapplications include: refractive index measurement, optical filters for interrogate gratingsstructures and chemical etching control. The paper analyses and compares different types ofhigh-birefringence fiber loop mirror sensors using conventional and microstructured opticalfibers. Some configurations are presented for simultaneous measurement of physicalparameters when combined with others optical devices, for example with a long periodgrating.<\/jats:p>","DOI":"10.3390\/s7112970","type":"journal-article","created":{"date-parts":[[2008,10,25]],"date-time":"2008-10-25T13:35:40Z","timestamp":1224941740000},"page":"2970-2983","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":113,"title":["Recent Advances in High-Birefringence Fiber Loop Mirror Sensors"],"prefix":"10.3390","volume":"7","author":[{"given":"Orlando","family":"Fraz\u00e3o","sequence":"first","affiliation":[{"name":"INESC Porto, Unidade de Optoelectr\u00f3nica e Sistemas Electr\u00f3nicos, Rua do Campo Alegre, 687, 4169-007 Porto, Portugal"}]},{"given":"Jos\u00e9 M. T.","family":"Baptista","sequence":"additional","affiliation":[{"name":"INESC Porto, Unidade de Optoelectr\u00f3nica e Sistemas Electr\u00f3nicos, Rua do Campo Alegre, 687, 4169-007 Porto, Portugal"}]},{"given":"Jos\u00e9 L.","family":"Santos","sequence":"additional","affiliation":[{"name":"INESC Porto, Unidade de Optoelectr\u00f3nica e Sistemas Electr\u00f3nicos, Rua do Campo Alegre, 687, 4169-007 Porto, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2007,11,26]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1217","DOI":"10.1109\/50.4119","article-title":"Fiber loop reflectors","volume":"6","author":"Mortimore","year":"1988","journal-title":"Journal of Lightwave Technology"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"1071","DOI":"10.1109\/JLT.1986.1074847","article-title":"Polarization-maintaining fibers and their applications","volume":"4","author":"Noda","year":"1986","journal-title":"Journal of Lightwave 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