{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,18]],"date-time":"2026-01-18T11:54:10Z","timestamp":1768737250350,"version":"3.49.0"},"reference-count":15,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2012,6,8]],"date-time":"2012-06-08T00:00:00Z","timestamp":1339113600000},"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>To compensate for the temperature dependency of a standard FBG, a cladding-etched FBG immersed with a liquid mixture having a negative thermo-optic coefficient is presented, and its characteristics are investigated. The Bragg wavelength of the cladding-etched FBG is shifted counter to the direction of the Bragg wavelength shift of a conventional FBG according to the mixing ratio of glycerin to water; thus, the temperature-dependent Bragg wavelength shift was almost compensated by using a liquid mixture of water (50%) and glycerin (50%) having the negative thermo-optic coefficient of \u22125 \u00d7 10\u22124 \u00b0C\u22121.<\/jats:p>","DOI":"10.3390\/s120607886","type":"journal-article","created":{"date-parts":[[2012,6,8]],"date-time":"2012-06-08T11:25:11Z","timestamp":1339154711000},"page":"7886-7892","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":27,"title":["A Temperature-Insensitive Cladding-Etched Fiber Bragg Grating Using a Liquid Mixture with a Negative Thermo-Optic Coefficient"],"prefix":"10.3390","volume":"12","author":[{"given":"Kwang Taek","family":"Kim","sequence":"first","affiliation":[{"name":"Department of Optoelectronics, Honam University, Gwangju 506-714, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"In Soo","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Optoelectronics, Honam University, Gwangju 506-714, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cherl-Hee","family":"Lee","sequence":"additional","affiliation":[{"name":"Robot System Division, Daegu Gyeongbuk Institute of Science & Technology, Daegu 711-813, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jonghun","family":"Lee","sequence":"additional","affiliation":[{"name":"Robot System Division, Daegu Gyeongbuk Institute of Science & Technology, Daegu 711-813, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2012,6,8]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"3188","DOI":"10.3938\/jkps.59.3188","article-title":"Characteristics of a fiber Bragg grating temperature sensor using the thermal strain of an external tube","volume":"5","author":"Lee","year":"2011","journal-title":"J. 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