{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,29]],"date-time":"2025-10-29T03:44:30Z","timestamp":1761709470942,"version":"build-2065373602"},"reference-count":14,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2018,2,13]],"date-time":"2018-02-13T00:00:00Z","timestamp":1518480000000},"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":["61575012","61575013"],"award-info":[{"award-number":["61575012","61575013"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>In this paper, we propose a small-diameter polarization-maintaining solid-core photonic crystal fiber. The coating diameter, cladding diameter and other key parameters relating to the thermal properties were studied. Based on the optimized parameters, a fiber with a Shupe constant 15% lower than commercial photonic crystal fibers (PCFs) was fabricated, and the transmission loss was lower than 2 dB\/km. The superior thermal stability of our fiber design was proven through both simulation and measurement. Using the small-diameter fiber, a split high precision fiber optic gyro (FOG) prototype was fabricated. The bias stability of the FOG was 0.0023 \u00b0\/h, the random walk was 0.0003 \u00b0\/     h     , and the scale factor error was less than 1 ppm. Throughout a temperature variation ranging from \u221240 to 60 \u00b0C, the bias stability was less than 0.02 \u00b0\/h without temperature compensation which is notably better than FOG with panda fiber. As a result, the PCF FOG is a promising choice for high precision FOG applications.<\/jats:p>","DOI":"10.3390\/s18020567","type":"journal-article","created":{"date-parts":[[2018,2,13]],"date-time":"2018-02-13T05:32:19Z","timestamp":1518499939000},"page":"567","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Thermally Optimized Polarization-Maintaining Photonic Crystal Fiber and Its FOG Application"],"prefix":"10.3390","volume":"18","author":[{"given":"Chunxi","family":"Zhang","sequence":"first","affiliation":[{"name":"School of Instrument Science and Opto-electronics Engineering, Beihang University, Beijing 100191, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhihao","family":"Zhang","sequence":"additional","affiliation":[{"name":"School of Instrument Science and Opto-electronics Engineering, Beihang University, Beijing 100191, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiaobin","family":"Xu","sequence":"additional","affiliation":[{"name":"School of Instrument Science and Opto-electronics Engineering, Beihang University, Beijing 100191, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wei","family":"Cai","sequence":"additional","affiliation":[{"name":"School of Instrument Science and Opto-electronics Engineering, Beihang University, Beijing 100191, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2018,2,13]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"358","DOI":"10.1126\/science.1079280","article-title":"Photonic crystal fibers","volume":"299","author":"Russell","year":"2003","journal-title":"Science"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"7","DOI":"10.1109\/JLT.2003.822143","article-title":"Ultralow loss and long length photonic crystal fiber","volume":"22","author":"Tajima","year":"2004","journal-title":"J. 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Laser Technol."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"3728","DOI":"10.1364\/OPEX.13.003728","article-title":"Inverse design and fabrication tolerances of ultra-flattened dispersion holey fibers","volume":"13","author":"Poletti","year":"2005","journal-title":"Opt. Express"},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"85","DOI":"10.1038\/nphoton.2008.285","article-title":"Ten years of nonlinear optics in photonic crystal fibre","volume":"3","author":"Dudley","year":"2009","journal-title":"Nat. Photonics"},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"3169","DOI":"10.1109\/JLT.2006.880689","article-title":"Air-core photonic-bandgap fiber-optic gyroscope","volume":"24","author":"Kim","year":"2006","journal-title":"J. Lightwave Technol."},{"key":"ref_10","unstructured":"Tawney, J., Hakimi, F., and Willig, R.L. (2008, January 15\u201318). Photonic crystal fiber IFOGs. 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Section 1."}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/18\/2\/567\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T14:54:56Z","timestamp":1760194496000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/18\/2\/567"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2018,2,13]]},"references-count":14,"journal-issue":{"issue":"2","published-online":{"date-parts":[[2018,2]]}},"alternative-id":["s18020567"],"URL":"https:\/\/doi.org\/10.3390\/s18020567","relation":{},"ISSN":["1424-8220"],"issn-type":[{"type":"electronic","value":"1424-8220"}],"subject":[],"published":{"date-parts":[[2018,2,13]]}}}