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Lett."],"published-print":{"date-parts":[[2025,8,15]]},"abstract":"<jats:p>We developed a highly sensitive tapered no-core fiber (TNCF)-based\n\t\t\t\t\tcardiovascular monitoring system featuring a glycerol-filled\n\t\t\t\t\tpolydimethylsiloxane (PDMS) sac design that minimizes alignment\n\t\t\t\t\terrors. The system achieves 0.339\u2009dB\/kPa vibration sensitivity,\n\t\t\t\t\t0.17\u2009kPa resolution, and 6.1\/6.4\u2009ms response\/recovery\n\t\t\t\t\ttimes while maintaining excellent stability. It enables comprehensive\n\t\t\t\t\tvascular health assessment through: 1) pulse wave velocity measurement\n\t\t\t\t\tvia synchronized chest-wrist waveform acquisition, 2) heart rate\n\t\t\t\t\tmonitoring during rest\/exercise, and 3) blood pressure prediction\n\t\t\t\t\tusing random forest regression. The regression model is evaluated as\n\t\t\t\t\tfollows: correlation coefficients of 0.95 and 0.94 for systolic blood\n\t\t\t\t\tpressure and diastolic blood pressure, mean absolute relative\n\t\t\t\t\tdifferences of 1.45% and 1.49%, and errors of 0.41\n\t\t\t\t\t\u00b1 1.98\u2009mmHg and 0.08 \u00b1 1.44\u2009mmHg,\n\t\t\t\t\trespectively, compared with standard sphygmomanometric\n\t\t\t\t\tmeasurements.<\/jats:p>","DOI":"10.1364\/ol.570612","type":"journal-article","created":{"date-parts":[[2025,7,14]],"date-time":"2025-07-14T13:59:29Z","timestamp":1752501569000},"page":"5081","update-policy":"https:\/\/doi.org\/10.1364\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Wearable pulse monitoring system for evaluating cardiovascular parameters based on tapered no-core fiber"],"prefix":"10.1364","volume":"50","author":[{"given":"Wen","family":"Qian","sequence":"first","affiliation":[{"name":"Minzu University of China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0004-0388-8882","authenticated-orcid":true,"given":"Wei","family":"Peng","sequence":"additional","affiliation":[{"name":"Minzu University of China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yijie","family":"Lv","sequence":"additional","affiliation":[{"name":"Minzu University of China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5943-0513","authenticated-orcid":true,"given":"Lei","family":"Meng","sequence":"additional","affiliation":[{"name":"Minzu University of China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chuanbo","family":"Li","sequence":"additional","affiliation":[{"name":"Minzu University of China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3475-3628","authenticated-orcid":true,"given":"Min","family":"Lv","sequence":"additional","affiliation":[{"name":"Minzu University of China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0001-3864-7681","authenticated-orcid":true,"given":"Honglian","family":"Guo","sequence":"additional","affiliation":[{"name":"Minzu University of China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"285","published-online":{"date-parts":[[2025,8,12]]},"reference":[{"key":"ol-50-16-5081-R1","doi-asserted-by":"publisher","first-page":"2982","DOI":"10.1016\/j.jacc.2020.11.021","volume":"76","author":"Roth","year":"2020","journal-title":"J. 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All rights,\n\t\t\t\t\tincluding for text and data mining (TDM), Artificial Intelligence (AI)\n\t\t\t\t\ttraining, and similar technologies, are\n\t\t\t\t\treserved.","name":"copyright","label":"Copyright"}]}}