{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T18:08:35Z","timestamp":1785434915651,"version":"3.56.0"},"reference-count":34,"publisher":"Optica Publishing Group","issue":"15","license":[{"start":{"date-parts":[[2026,7,21]],"date-time":"2026-07-21T00:00:00Z","timestamp":1784592000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/doi.org\/10.1364\/OA_License_v2#VOR-OA"},{"start":{"date-parts":[[2026,7,21]],"date-time":"2026-07-21T00:00:00Z","timestamp":1784592000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/opg.optica.org\/policies\/opg-tdm-policy.json"}],"funder":[{"DOI":"10.13039\/501100003661","name":"Korea Institute for Advancement of Technology","doi-asserted-by":"crossref","award":["RS00411221"],"award-info":[{"award-number":["RS00411221"]}],"id":[{"id":"10.13039\/501100003661","id-type":"DOI","asserted-by":"crossref"},{"id":"https:\/\/ror.org\/015w1qa96","id-type":"ROR","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003696","name":"Electronics and Telecommunications Research Institute","doi-asserted-by":"crossref","award":["26ZK1100"],"award-info":[{"award-number":["26ZK1100"]}],"id":[{"id":"10.13039\/501100003696","id-type":"DOI","asserted-by":"crossref"},{"id":"https:\/\/ror.org\/03ysstz10","id-type":"ROR","asserted-by":"publisher"}]}],"content-domain":{"domain":["opg.optica.org"],"crossmark-restriction":false},"short-container-title":["Opt. Express"],"published-print":{"date-parts":[[2026,7,27]]},"abstract":"<jats:p>\n                    We propose and experimentally demonstrate an optical microheater based on metal-doped optical fibers (MDFs) that exploits the intrinsic 1480\u2005nm absorption of Co\n                    <jats:sup>2+<\/jats:sup>\n                    and Fe\n                    <jats:sup>2+<\/jats:sup>\n                    \/Fe\n                    <jats:sup>3+<\/jats:sup>\n                    ions co-doped in an aluminosilicate core. Three MDFs with attenuation coefficients of 9.45, 12.58, and 32.43\u2005dB\/cm are fusion-spliced to single-mode fibers to form 10-mm-long heaters. Under 367\u2005mW pumping, the peak surface temperatures reach 166, 268, and 478 \u00b0C, while the corresponding hot-zone lengths (FWHM) decrease from 10.6 to 2.8\u2005mm, demonstrating that the attenuation coefficient is a single design parameter that simultaneously controls both temperature and spatial confinement. A Beer\u2013Lambert distributed heat source coupled with a cylindrical fin model predicts the peak temperatures of the remaining samples within 5\u201321% from a single calibration point. Independent fiber Bragg grating measurements verify the thermographic results within 18 \u00b0C, and optically induced carbonization of an acrylate recoating confirms the practical heating capability. Unlike conventional coating-based fiber microheaters, the proposed device requires no external photothermal layer, is directly fusion-spliceable to standard SMFs, and enables attenuation-controlled tailoring of both the peak temperature and hot-zone length.\n                  <\/jats:p>","DOI":"10.1364\/oe.605266","type":"journal-article","created":{"date-parts":[[2026,7,14]],"date-time":"2026-07-14T08:00:09Z","timestamp":1784016009000},"page":"28164","update-policy":"https:\/\/doi.org\/10.1364\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["All-fiber microheater with attenuation-controlled hot-zone based on metal-doped silica fibers"],"prefix":"10.1364","volume":"34","author":[{"given":"Youngmin","family":"Ko","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/01zt9a375","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yeongwan","family":"Kim","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/01zt9a375","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8801-9846","authenticated-orcid":true,"given":"Tae-Jung","family":"Ahn","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/01zt9a375","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"285","published-online":{"date-parts":[[2026,7,21]]},"reference":[{"key":"oe-34-15-28164-R1","doi-asserted-by":"publisher","first-page":"589","DOI":"10.1109\/TDMR.2014.2311801","type":"journal-article","volume":"14","author":"Bhattacharyya","year":"2014","journal-title":"IEEE Trans. Device Mater. Reliab."},{"key":"oe-34-15-28164-R2","doi-asserted-by":"publisher","first-page":"525","DOI":"10.3390\/mi13040525","type":"journal-article","volume":"13","author":"Algamili","year":"2022","journal-title":"Micromachines"},{"key":"oe-34-15-28164-R3","doi-asserted-by":"publisher","author":"Tummala","year":"2025","DOI":"10.21203\/rs.3.rs-8253144\/v1","type":"preprint"},{"key":"oe-34-15-28164-R4","doi-asserted-by":"publisher","first-page":"2200606","DOI":"10.1109\/JPHOT.2013.2247993","type":"journal-article","volume":"5","author":"Zhao","year":"2013","journal-title":"IEEE Photonics J."},{"key":"oe-34-15-28164-R5","doi-asserted-by":"publisher","first-page":"374","DOI":"10.3390\/s19020374","type":"journal-article","volume":"19","author":"Lahlalia","year":"2019","journal-title":"Sensors"},{"key":"oe-34-15-28164-R6","doi-asserted-by":"publisher","first-page":"311","DOI":"10.1016\/j.snb.2009.12.011","type":"journal-article","volume":"145","author":"Zhou","year":"2010","journal-title":"Sens. Actuators B: Chem."},{"key":"oe-34-15-28164-R7","doi-asserted-by":"publisher","first-page":"18","DOI":"10.1186\/s40486-019-0098-1","type":"journal-article","volume":"7","author":"Lee","year":"2019","journal-title":"Micro Nano Syst. Lett."},{"key":"oe-34-15-28164-R8","doi-asserted-by":"publisher","first-page":"9931","DOI":"10.1021\/acsabm.5c01263","type":"journal-article","volume":"8","author":"Yalagala","year":"2025","journal-title":"ACS Appl. Bio Mater."},{"key":"oe-34-15-28164-R9","doi-asserted-by":"publisher","first-page":"1138","DOI":"10.1364\/BOE.7.001138","type":"journal-article","volume":"7","author":"Pimentel-Dom\u00ednguez","year":"2016","journal-title":"Biomed. Opt. Express"},{"key":"oe-34-15-28164-R10","doi-asserted-by":"publisher","first-page":"499","DOI":"10.3390\/mi10080499","type":"journal-article","volume":"10","author":"Zhang","year":"2019","journal-title":"Micromachines"},{"key":"oe-34-15-28164-R11","doi-asserted-by":"publisher","first-page":"5149","DOI":"10.3390\/s20185149","type":"journal-article","volume":"20","author":"Yang","year":"2020","journal-title":"Sensors"},{"key":"oe-34-15-28164-R12","doi-asserted-by":"publisher","first-page":"1282","DOI":"10.1364\/BOE.10.001282","type":"journal-article","volume":"10","author":"Beisenova","year":"2019","journal-title":"Biomed. Opt. Express"},{"key":"oe-34-15-28164-R14","doi-asserted-by":"publisher","first-page":"1898","DOI":"10.3390\/s120201898","type":"journal-article","volume":"12","author":"Mihailov","year":"2012","journal-title":"Sensors"},{"key":"oe-34-15-28164-R15","doi-asserted-by":"publisher","first-page":"3","DOI":"10.1007\/s10544-021-00595-8","type":"journal-article","volume":"24","author":"Jeroish","year":"2022","journal-title":"Biomed. Microdevices"},{"key":"oe-34-15-28164-R16","doi-asserted-by":"publisher","first-page":"73","DOI":"10.1186\/1471-213X-9-73","type":"journal-article","volume":"9","author":"Placinta","year":"2009","journal-title":"BMC Dev. Biol."},{"key":"oe-34-15-28164-R17","doi-asserted-by":"publisher","first-page":"100910","DOI":"10.1016\/j.rio.2025.100910","type":"journal-article","volume":"21","author":"May-Arrioja","year":"2025","journal-title":"Results Opt."},{"key":"oe-34-15-28164-R18","doi-asserted-by":"publisher","first-page":"5612850","DOI":"10.34133\/2021\/5612850","type":"journal-article","volume":"2021","author":"Guo","year":"2021","journal-title":"Research"},{"key":"oe-34-15-28164-R19","doi-asserted-by":"publisher","first-page":"1412","DOI":"10.1364\/OL.42.001412","type":"journal-article","volume":"42","author":"Liu","year":"2017","journal-title":"Opt. Lett."},{"key":"oe-34-15-28164-R20","author":"Saleh","year":"2019"},{"key":"oe-34-15-28164-R21","author":"Digonnet","year":"2001"},{"key":"oe-34-15-28164-R22","doi-asserted-by":"publisher","first-page":"207","DOI":"10.1109\/3.903070","type":"journal-article","volume":"37","author":"Brown","year":"2001","journal-title":"IEEE J. Quantum Electron."},{"key":"oe-34-15-28164-R23","author":"Incropera","year":"2011"},{"key":"oe-34-15-28164-R24","doi-asserted-by":"publisher","first-page":"1821","DOI":"10.1364\/JOSAB.390935","type":"journal-article","volume":"37","author":"Mafi","year":"2020","journal-title":"J. Opt. Soc. Am. B"},{"key":"oe-34-15-28164-R25","doi-asserted-by":"publisher","first-page":"199","DOI":"10.1016\/S0065-2717(08)70075-3","type":"journal-article","volume":"11","author":"Morgan","year":"1975","journal-title":"Adv. Heat Transf."},{"key":"oe-34-15-28164-R26","doi-asserted-by":"publisher","first-page":"265","DOI":"10.1016\/S0065-2717(08)70076-5","type":"journal-article","volume":"11","author":"Raithby","year":"1975","journal-title":"Adv. Heat Transf."},{"key":"oe-34-15-28164-R27","author":"Mills","year":"1999"},{"key":"oe-34-15-28164-R28","doi-asserted-by":"publisher","first-page":"11406","DOI":"10.1021\/acsnano.0c03703","type":"journal-article","volume":"14","author":"Kang","year":"2020","journal-title":"ACS Nano"},{"key":"oe-34-15-28164-R29","doi-asserted-by":"publisher","first-page":"927","DOI":"10.1016\/j.jnoncrysol.2007.08.020","type":"journal-article","volume":"354","author":"Tang","year":"2008","journal-title":"J. Non-Cryst. Solids"},{"key":"oe-34-15-28164-R30","doi-asserted-by":"publisher","first-page":"309","DOI":"10.1111\/j.1151-2916.1974.tb10908.x","type":"journal-article","volume":"57","author":"Schultz","year":"1974","journal-title":"J. Am. Ceram. Soc."},{"key":"oe-34-15-28164-R31","doi-asserted-by":"publisher","first-page":"e27029","DOI":"10.1016\/j.heliyon.2024.e27029","type":"journal-article","volume":"10","author":"Ahmed","year":"2024","journal-title":"Heliyon"},{"key":"oe-34-15-28164-R32","doi-asserted-by":"publisher","first-page":"494","DOI":"10.1016\/j.optcom.2006.04.024","type":"journal-article","volume":"265","author":"Won","year":"2006","journal-title":"Opt. Commun."},{"key":"oe-34-15-28164-R33","doi-asserted-by":"publisher","first-page":"211","DOI":"10.1016\/j.sna.2004.01.024","type":"journal-article","volume":"112","author":"Pal","year":"2004","journal-title":"Sens. Actuators A Phys."},{"key":"oe-34-15-28164-R34","doi-asserted-by":"publisher","first-page":"44769","DOI":"10.1364\/OE.470093","type":"journal-article","volume":"30","author":"Buchfellner","year":"2022","journal-title":"Opt. Express"},{"key":"oe-34-15-28164-R35","doi-asserted-by":"publisher","first-page":"1791","DOI":"10.3390\/s18061791","type":"journal-article","volume":"18","author":"Laffont","year":"2018","journal-title":"Sensors"}],"container-title":["Optics Express"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/opg.optica.org\/viewmedia.cfm?URI=oe-34-15-28164&seq=0","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,7,21]],"date-time":"2026-07-21T17:00:44Z","timestamp":1784653244000},"score":1,"resource":{"primary":{"URL":"https:\/\/opg.optica.org\/abstract.cfm?URI=oe-34-15-28164"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,7,21]]},"references-count":34,"journal-issue":{"issue":"15","published-online":{"date-parts":[[2026]]},"published-print":{"date-parts":[[2026]]}},"URL":"https:\/\/doi.org\/10.1364\/oe.605266","relation":{},"ISSN":["1094-4087"],"issn-type":[{"value":"1094-4087","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,7,21]]},"assertion":[{"value":"Optica Publishing Group","name":"publisher","label":"This article is maintained by"},{"value":"https:\/\/doi.org\/10.1364\/OE.605266","name":"articlelink","label":"Crossref DOI link to publisher maintained version"},{"value":"research-article","name":"content_type","label":"Article type"},{"value":"Screened by Similarity Check","name":"cross_check","label":"Similarity check"},{"value":"Yes","order":0,"name":"peer_reviewed","label":"Peer reviewed","group":{"name":"peer_review","label":"Peer review"}},{"value":"Single blind","order":1,"name":"review_process","label":"Review process","group":{"name":"peer_review","label":"Peer review"}},{"value":"12 May 2026","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"11 July 2026","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"21 July 2026","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}},{"value":"\u00a9 2026 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement","name":"copyright","label":"Copyright"}]}}