{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,22]],"date-time":"2026-06-22T18:25:28Z","timestamp":1782152728288,"version":"3.54.5"},"reference-count":20,"publisher":"MDPI AG","issue":"7","license":[{"start":{"date-parts":[[2019,3,29]],"date-time":"2019-03-29T00:00:00Z","timestamp":1553817600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["61773249"],"award-info":[{"award-number":["61773249"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100007219","name":"Natural Science Foundation of Shanghai","doi-asserted-by":"publisher","award":["16ZR1411700"],"award-info":[{"award-number":["16ZR1411700"]}],"id":[{"id":"10.13039\/100007219","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Science and Technology on Near-Surface Detection Laboratory","award":["6142414090117, TCGZ2017A006"],"award-info":[{"award-number":["6142414090117, TCGZ2017A006"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>A novel Fabry\u2013Perot (F\u2013P) interferometer model based on the ultra-small gradient-index (GRIN) fiber probe is investigated. The signal arm of the F\u2013P interferometer is organically combined with the ultra-small GRIN fiber probe to establish the theoretical model of the novel F\u2013P interferometer. An interferometer experimental system for vibration measurements was built to measure the performance of the novel F\u2013P interferometer system. The experimental results show that under the given conditions, the output voltage of the novel interferometer is 3.9 V at the working distance of 0.506 mm, which is significantly higher than the output voltage 0.48 V of the single-mode fiber (SMF) F\u2013P interferometer at this position. In the range of 0.1\u20132 mm cavity length, the novel interferometer has a higher output voltage than an SMF F\u2013P interferometer. Therefore, the novel F\u2013P interferometer is available for further study of the precise measurement of micro vibrations and displacements in narrow spaces.<\/jats:p>","DOI":"10.3390\/s19071538","type":"journal-article","created":{"date-parts":[[2019,3,29]],"date-time":"2019-03-29T13:09:58Z","timestamp":1553864998000},"page":"1538","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Research on a Novel Fabry\u2013Perot Interferometer Model Based on the Ultra-Small Gradient-Index Fiber Probe"],"prefix":"10.3390","volume":"19","author":[{"given":"Chi","family":"Wang","sequence":"first","affiliation":[{"name":"Department of Precision Mechanical Engineering, Shanghai University, Shanghai 200444, China"},{"name":"Science and Technology on Near-surface Detection Laboratory, Wuxi 214035, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jianmei","family":"Sun","sequence":"additional","affiliation":[{"name":"Department of Precision Mechanical Engineering, Shanghai University, Shanghai 200444, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chenye","family":"Yang","sequence":"additional","affiliation":[{"name":"Department of Precision Mechanical Engineering, Shanghai University, Shanghai 200444, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9305-6406","authenticated-orcid":false,"given":"Bin","family":"Kuang","sequence":"additional","affiliation":[{"name":"Department of Precision Mechanical Engineering, Shanghai University, Shanghai 200444, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dong","family":"Fang","sequence":"additional","affiliation":[{"name":"Science and Technology on Near-surface Detection Laboratory, Wuxi 214035, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anand","family":"Asundi","sequence":"additional","affiliation":[{"name":"School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore 639798, Singapore"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2019,3,29]]},"reference":[{"key":"ref_1","first-page":"1","article-title":"Simplified hollow-core fiber-based fabry\u2013perot interferometer with modified vernier effect for highly sensitive high-temperature measurement","volume":"7","author":"Zhang","year":"2017","journal-title":"IEEE Photonics J."},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Chen, Z., Xiong, S., Gao, S., Zhang, H., Wan, L., Huang, X., Huang, B., Feng, Y., Liu, W., and Li, Z. 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