{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,4]],"date-time":"2026-06-04T18:16:02Z","timestamp":1780596962154,"version":"3.54.1"},"reference-count":29,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2018,1,12]],"date-time":"2018-01-12T00:00:00Z","timestamp":1515715200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>A miniaturized tip Fabry-Perot interferometer (tip-FPI) is proposed for high-temperature sensing. It is simply fabricated for the first time by splicing a short length of microfiber (MF) to the cleaved end of a standard single mode fiber (SMF) with precise control of the relative cross section position. Such a MF acts as a Fabry-Perot (FP) cavity and serves as a tip sensor. A change in temperature modifies the length and refractive index of the FP cavity, and then a corresponding change in the reflected interference spectrum can be observed. High temperatures of up to 1000 \u00b0C are measured in the experiments, and a high sensitivity of 13.6 pm\/\u00b0C is achieved. This compact sensor, with tip diameter and length both of tens of microns, is suitable for localized detection, especially in harsh environments.<\/jats:p>","DOI":"10.3390\/s18010202","type":"journal-article","created":{"date-parts":[[2018,1,15]],"date-time":"2018-01-15T04:01:55Z","timestamp":1515988915000},"page":"202","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":71,"title":["High-Temperature Sensor Based on Fabry-Perot Interferometer in Microfiber Tip"],"prefix":"10.3390","volume":"18","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4299-3760","authenticated-orcid":false,"given":"Zhenshi","family":"Chen","sequence":"first","affiliation":[{"name":"Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Institute of Photonics Technology, Jinan University, Guangzhou 510632, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Songsong","family":"Xiong","sequence":"additional","affiliation":[{"name":"Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shecheng","family":"Gao","sequence":"additional","affiliation":[{"name":"Department of Electronic Engineering, College of Information Science and Techonology, Jinan University, Guangzhou 510632, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hui","family":"Zhang","sequence":"additional","affiliation":[{"name":"School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lei","family":"Wan","sequence":"additional","affiliation":[{"name":"Institute of Optoelectronic Material and Technology, South China Normal University, Guangzhou 510631, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xincheng","family":"Huang","sequence":"additional","affiliation":[{"name":"Department of Electronic Engineering, College of Information Science and Techonology, Jinan University, Guangzhou 510632, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bingsen","family":"Huang","sequence":"additional","affiliation":[{"name":"Department of Electronic Engineering, College of Information Science and Techonology, Jinan University, Guangzhou 510632, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuanhua","family":"Feng","sequence":"additional","affiliation":[{"name":"Department of Electronic Engineering, College of Information Science and Techonology, Jinan University, Guangzhou 510632, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Weiping","family":"Liu","sequence":"additional","affiliation":[{"name":"Department of Electronic Engineering, College of Information Science and Techonology, Jinan University, Guangzhou 510632, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhaohui","family":"Li","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Optoelectronic Materials and Technologies and School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou 510275, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2018,1,12]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Matias, I.R., Ikezawa, S., and Corres, J. (2016). Fiber optic sensors based on nano-films. Fiber Optic Sensors: Current Status and Future Possibilities, Springer.","DOI":"10.1007\/978-3-319-42625-9"},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Barrera, D., Finazzi, V., Villatoro, J., Sales, S., and Pruneri, V. (2011, January 15\u201319). Performance of a high-temperature sensor based on regenerated fiber bragg gratings. Proceedings of the 21st International Conference on Optical Fibre Sensors (OFS21), Ottawa, ON, Canada.","DOI":"10.1117\/12.885927"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"195","DOI":"10.1364\/OL.41.000195","article-title":"Sourceless optical fiber high temperature sensor","volume":"41","author":"Tian","year":"2016","journal-title":"Opt. Lett."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"21693","DOI":"10.1364\/OE.24.021693","article-title":"All fiber M-Z interferometer for high temperature sensing based on a hetero-structured cladding solid-core photonic bandgap fiber","volume":"24","author":"Hu","year":"2016","journal-title":"Opt. Express"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"39","DOI":"10.1109\/LPT.2009.2035638","article-title":"High-temperature sensing using miniaturized fiber in-line mach\u2013zehnder interferometer","volume":"22","author":"Wang","year":"2010","journal-title":"IEEE Photonics Technol. Lett."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"4489","DOI":"10.1364\/OL.37.004489","article-title":"Fiber inline michelson interferometer fabricated by a femtosecond laser","volume":"37","author":"Yuan","year":"2012","journal-title":"Opt. Lett."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"625","DOI":"10.1109\/LPT.2015.2503276","article-title":"Assembly-free-based fiber-optic micro-michelson interferometer for high temperature sensing","volume":"28","author":"Yin","year":"2016","journal-title":"IEEE Photonics Technol. Lett."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"1530","DOI":"10.1109\/JLT.2010.2047376","article-title":"High-temperature annealing behaviors of CO2 laser pulse-induced long-period fiber grating in a photonic crystal fiber","volume":"28","author":"Rao","year":"2010","journal-title":"J. Lightwave Technol."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"14936","DOI":"10.1364\/OE.15.014936","article-title":"Hybrid LPFG\/MEFPI sensor for simultaneous measurement of high-temperature and strain","volume":"15","author":"Rao","year":"2007","journal-title":"Opt. Express"},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"090602","DOI":"10.3788\/COL201715.090602","article-title":"High temperature-sensitivity sensor based on long period fiber grating inscribed with femtosecond laser transversal-scanning method","volume":"15","author":"Dong","year":"2017","journal-title":"Chin. Opt. Lett."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"4609","DOI":"10.1364\/OL.38.004609","article-title":"High-temperature fiber-optic fabry\u2013perot interferometric pressure sensor fabricated by femtosecond laser","volume":"38","author":"Zhang","year":"2013","journal-title":"Opt. Lett."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"2419","DOI":"10.1109\/JLT.2015.2397936","article-title":"In-fiber fabry\u2013perot cavity sensor for high-temperature applications","volume":"33","author":"Mathew","year":"2015","journal-title":"J. Lightwave Technol."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"1157","DOI":"10.1364\/OL.42.001157","article-title":"Ultra-sensitive refractive index sensor based on an extremely simple femtosecond-laser-induced structure","volume":"42","author":"Chen","year":"2017","journal-title":"Opt. Lett."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"4029","DOI":"10.1364\/OL.36.004029","article-title":"Fabry\u2013perot cavity based on a diaphragm-free hollow-core silica tube","volume":"36","author":"Ferreira","year":"2011","journal-title":"Opt. Lett."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"21551","DOI":"10.1364\/OE.17.021551","article-title":"Thermally stabilized pcf-based sensor for temperature measurements up to 1000 \u00b0C","volume":"17","author":"Coviello","year":"2009","journal-title":"Opt. Express"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"4309","DOI":"10.1364\/OL.39.004309","article-title":"Multicore fiber sensor for high-temperature applications up to 1000 \u00b0C","volume":"39","author":"Eznaveh","year":"2014","journal-title":"Opt. Lett."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"412","DOI":"10.1364\/OL.36.000412","article-title":"High-pressure and high-temperature characteristics of a fabry\u2013perot interferometer based on photonic crystal fiber","volume":"36","author":"Wu","year":"2011","journal-title":"Opt. Lett."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"3714","DOI":"10.1364\/OE.24.003714","article-title":"Temperature sensing up to 1300 \u00b0C using suspended-core microstructured optical fibers","volume":"24","author":"Nguyen","year":"2016","journal-title":"Opt. Express"},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"8967","DOI":"10.1364\/OE.24.008967","article-title":"Interferometric high temperature sensor using suspended-core optical fibers","volume":"24","author":"Nguyen","year":"2016","journal-title":"Opt. Express"},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"1412","DOI":"10.1364\/OL.42.001412","article-title":"Self-gauged fiber-optic micro-heater with an operation temperature above 1000 \u00b0C","volume":"42","author":"Liu","year":"2017","journal-title":"Opt. Lett."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"7237","DOI":"10.1364\/OE.23.007237","article-title":"High-resolution and fast-response fiber-optic temperature sensor using silicon fabry-p\u00e9rot cavity","volume":"23","author":"Liu","year":"2015","journal-title":"Opt. Express"},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"861","DOI":"10.1109\/JLT.2005.862444","article-title":"High-temperature fiber-tip pressure sensor","volume":"24","author":"Zhu","year":"2006","journal-title":"J. Lightwave Technol."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"1593","DOI":"10.1109\/LPT.2013.2271325","article-title":"Post-processing of fabry\u2013p\u00e9rot microcavity tip sensor","volume":"25","author":"Ferreira","year":"2013","journal-title":"IEEE Photonics Technol. Lett."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"5764","DOI":"10.1364\/OE.16.005764","article-title":"Temperature-insensitive miniaturized fiber inline fabry-perot interferometer for highly sensitive refractive index measurement","volume":"16","author":"Wei","year":"2008","journal-title":"Opt. Express"},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"1362","DOI":"10.1364\/OL.40.001362","article-title":"Temperature characteristics of silicon core optical fiber fabry\u2013perot interferometer","volume":"40","author":"Zhang","year":"2015","journal-title":"Opt. Lett."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"1682","DOI":"10.1109\/JLT.2014.2310205","article-title":"Microfiber-enabled in-line fabry\u2013p\u00e9rot interferometer for high-sensitive force and refractive index sensing","volume":"32","author":"Gao","year":"2014","journal-title":"J. Lightwave Technol."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"1878","DOI":"10.1109\/LPT.2012.2217949","article-title":"Highly sensitive in-fiber refractive index sensor based on down-bitaper seeded up-bitaper pair","volume":"24","author":"Gao","year":"2012","journal-title":"IEEE Photonics Technol. Lett."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"1815","DOI":"10.1109\/LPT.2013.2274492","article-title":"Ultrasensitive refractive index sensor based on microfiber-assisted u-shape cavity","volume":"25","author":"Gao","year":"2013","journal-title":"IEEE Photonics Technol. Lett."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"151","DOI":"10.1016\/j.bios.2016.02.065","article-title":"Label-free in-situ real-time DNA hybridization kinetics detection employing microfiber-assisted mach-zehnder interferometer","volume":"81","author":"Song","year":"2016","journal-title":"Biosens. 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