{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,29]],"date-time":"2026-04-29T15:16:20Z","timestamp":1777475780117,"version":"3.51.4"},"reference-count":43,"publisher":"MDPI AG","issue":"10","license":[{"start":{"date-parts":[[2017,10,20]],"date-time":"2017-10-20T00:00:00Z","timestamp":1508457600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100013704","name":"CONACYT","doi-asserted-by":"publisher","award":["546217\/300665"],"award-info":[{"award-number":["546217\/300665"]}],"id":[{"id":"10.13039\/501100013704","id-type":"DOI","asserted-by":"publisher"}]},{"name":"SEP-PRODEP","award":["UGTO-PTC-541"],"award-info":[{"award-number":["UGTO-PTC-541"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>A compact, magnetic field sensor system based on a short, bi-tapered optical fiber (BTOF) span lying on a magnetic tape was designed, fabricated, and characterized. We monitored the transmission spectrum from a broadband light source, which displayed a strong interference signal. After data collection, we applied a phase analysis of the interference optical spectrum. We here report the results on two fabricated, BTOFs with different interference spectrum characteristics; we analyzed the signal based on the interference between a high-order modal component and the core fiber mode. The sensor exhibited a linear response for magnetic field increments, and we achieved a phase sensitivity of around 0.28 rad\/mT. The sensing setup presented remote sensing operation and low-cost transducer magnetic material.<\/jats:p>","DOI":"10.3390\/s17102393","type":"journal-article","created":{"date-parts":[[2017,10,23]],"date-time":"2017-10-23T04:32:19Z","timestamp":1508733139000},"page":"2393","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Magnetic Field Sensing Based on Bi-Tapered Optical Fibers Using Spectral Phase Analysis"],"prefix":"10.3390","volume":"17","author":[{"given":"Luis","family":"Herrera-Piad","sequence":"first","affiliation":[{"name":"Departamento de Ingenier\u00eda Electr\u00f3nica, Divisi\u00f3n de Ingenier\u00edas, Universidad de Guanajuato, Carretera, Salamanca-Valle de Santiago km 3.5 + 1.8, Comunidad de Palo Blanco, Salamanca Gto. C.P. 36885, Mexico"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4882-5656","authenticated-orcid":false,"given":"Joseph","family":"Haus","sequence":"additional","affiliation":[{"name":"Department of Electro-Optics and Photonics, University of Dayton, Dayton, OH 45469, USA"}]},{"given":"Daniel","family":"Jauregui-Vazquez","sequence":"additional","affiliation":[{"name":"Departamento de Ingenier\u00eda Electr\u00f3nica, Divisi\u00f3n de Ingenier\u00edas, Universidad de Guanajuato, Carretera, Salamanca-Valle de Santiago km 3.5 + 1.8, Comunidad de Palo Blanco, Salamanca Gto. C.P. 36885, Mexico"}]},{"given":"Juan","family":"Sierra-Hernandez","sequence":"additional","affiliation":[{"name":"Departamento de Ingenier\u00eda Electr\u00f3nica, Divisi\u00f3n de Ingenier\u00edas, Universidad de Guanajuato, Carretera, Salamanca-Valle de Santiago km 3.5 + 1.8, Comunidad de Palo Blanco, Salamanca Gto. C.P. 36885, Mexico"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4010-3800","authenticated-orcid":false,"given":"Julian","family":"Estudillo-Ayala","sequence":"additional","affiliation":[{"name":"Departamento de Ingenier\u00eda Electr\u00f3nica, Divisi\u00f3n de Ingenier\u00edas, Universidad de Guanajuato, Carretera, Salamanca-Valle de Santiago km 3.5 + 1.8, Comunidad de Palo Blanco, Salamanca Gto. C.P. 36885, Mexico"}]},{"given":"Yanelis","family":"Lopez-Dieguez","sequence":"additional","affiliation":[{"name":"Departamento de Ingenier\u00eda Electr\u00f3nica, Divisi\u00f3n de Ingenier\u00edas, Universidad de Guanajuato, Carretera, Salamanca-Valle de Santiago km 3.5 + 1.8, Comunidad de Palo Blanco, Salamanca Gto. C.P. 36885, Mexico"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9487-0354","authenticated-orcid":false,"given":"Roberto","family":"Rojas-Laguna","sequence":"additional","affiliation":[{"name":"Departamento de Ingenier\u00eda Electr\u00f3nica, Divisi\u00f3n de Ingenier\u00edas, Universidad de Guanajuato, Carretera, Salamanca-Valle de Santiago km 3.5 + 1.8, Comunidad de Palo Blanco, Salamanca Gto. C.P. 36885, Mexico"}]}],"member":"1968","published-online":{"date-parts":[[2017,10,20]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"19","DOI":"10.1364\/OL.6.000019","article-title":"Magnetic-field sensing with a single-mode fiber","volume":"6","author":"Rashleigh","year":"1981","journal-title":"Opt. 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