{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T15:07:52Z","timestamp":1790176072102,"version":"4.1.0"},"reference-count":19,"publisher":"Optica Publishing Group","issue":"19","license":[{"start":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T00:00:00Z","timestamp":1790121600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/doi.org\/10.1364\/OA_License_v2#VOR"},{"start":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T00:00:00Z","timestamp":1790121600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/opg.optica.org\/policies\/opg-tdm-policy.json"}],"funder":[{"name":"National Natural Science Foundation of China","award":["62405292"],"award-info":[{"award-number":["62405292"]}],"id":[{"id":"https:\/\/ror.org\/01h0zpd94","id-type":"ROR","asserted-by":"publisher"}]},{"name":"National Natural Science Foundation of China","award":["62401522"],"award-info":[{"award-number":["62401522"]}],"id":[{"id":"https:\/\/ror.org\/01h0zpd94","id-type":"ROR","asserted-by":"publisher"}]},{"name":"Fundamental Research Program of Shanxi Province","award":["202403021222184"],"award-info":[{"award-number":["202403021222184"]}]},{"name":"The Opening Foundation of Shanxi Key Laboratory of Micro nano Devices and Systems Ministry of Education","award":["WNQJ202503"],"award-info":[{"award-number":["WNQJ202503"]}]},{"name":"Shanxi Scholarship Council of China"}],"content-domain":{"domain":["opg.optica.org"],"crossmark-restriction":false},"short-container-title":["Opt. Lett."],"published-print":{"date-parts":[[2026,10,1]]},"abstract":"<jats:p>\n                    Frequency-sweep nonlinearity limits the resolution and stability of coherent optical sensing systems. We present a simple optical-feedback-based method that uses the beat signal from a stationary target to characterize the instantaneous sweep rate and iteratively predistort the frequency-tuning waveform, without an auxiliary interferometer or external frequency reference. Experiments with a PZT-tuned 1064\u2009nm frequency-swept microchip laser reduce beat-frequency variance to 0.049 kHz\n                    <jats:sup>2<\/jats:sup>\n                    (&gt;99% suppression) and compress the overall spectral width by more than 60%, demonstrating effective source-level linearization in both sweep directions.\n                  <\/jats:p>","DOI":"10.1364\/ol.612571","type":"journal-article","created":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T18:00:06Z","timestamp":1788285606000},"page":"5449","update-policy":"https:\/\/doi.org\/10.1364\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Nonlinearity compensation in laser frequency sweep with optical feedback"],"prefix":"10.1364","volume":"51","author":[{"given":"Shiwei","family":"Deng","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/047bp1713","id-type":"ROR","asserted-by":"publisher"}]},{"name":"North University of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qinghao","family":"Hu","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/047bp1713","id-type":"ROR","asserted-by":"publisher"}]},{"name":"North University of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yubo","family":"Zhao","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/047bp1713","id-type":"ROR","asserted-by":"publisher"}]},{"name":"North University of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1213-3041","authenticated-orcid":true,"given":"Fangfang","family":"Du","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/047bp1713","id-type":"ROR","asserted-by":"publisher"}]},{"name":"North University of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhihui","family":"Liu","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/047bp1713","id-type":"ROR","asserted-by":"publisher"}]},{"name":"North University of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jing","family":"Li","sequence":"additional","affiliation":[{"name":"North University of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qiulin","family":"Tan","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/047bp1713","id-type":"ROR","asserted-by":"publisher"}]},{"name":"North University of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8680-5851","authenticated-orcid":true,"given":"Rui","family":"Feng","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/047bp1713","id-type":"ROR","asserted-by":"publisher"}]},{"name":"North University of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xijing","family":"Zhu","sequence":"additional","affiliation":[{"name":"North University of China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"285","published-online":{"date-parts":[[2026,9,23]]},"reference":[{"key":"ol-51-19-5449-R1","doi-asserted-by":"publisher","first-page":"30420","DOI":"10.1364\/OE.465858","type":"journal-article","volume":"30","author":"Tang","year":"2022","journal-title":"Opt. Express"},{"key":"ol-51-19-5449-R2","doi-asserted-by":"publisher","first-page":"928","DOI":"10.1364\/OL.544499","type":"journal-article","volume":"50","author":"Fan","year":"2025","journal-title":"Opt. Lett."},{"key":"ol-51-19-5449-R3","doi-asserted-by":"publisher","first-page":"5166","DOI":"10.1109\/JLT.2025.3549514","type":"journal-article","volume":"43","author":"Liu","year":"2025","journal-title":"J. Lightwave Technol."},{"key":"ol-51-19-5449-R4","doi-asserted-by":"publisher","first-page":"5950","DOI":"10.1364\/OL.443126","type":"journal-article","volume":"46","author":"Lou","year":"2021","journal-title":"Opt. Lett."},{"key":"ol-51-19-5449-R5","doi-asserted-by":"publisher","first-page":"066003","DOI":"10.1117\/1.APN.3.6.066003","type":"journal-article","volume":"3","author":"Lin","year":"2024","journal-title":"Adv. Photonics Nexus"},{"key":"ol-51-19-5449-R6","doi-asserted-by":"publisher","first-page":"7083","DOI":"10.1364\/AO.497834","type":"journal-article","volume":"62","author":"Liu","year":"2023","journal-title":"Appl. Opt."},{"key":"ol-51-19-5449-R7","doi-asserted-by":"publisher","first-page":"3522","DOI":"10.1038\/s41467-022-30911-6","type":"journal-article","volume":"13","author":"Lihachev","year":"2022","journal-title":"Nat. Commun."},{"key":"ol-51-19-5449-R8","doi-asserted-by":"publisher","first-page":"411","DOI":"10.1038\/s41586-023-05724-2","type":"journal-article","volume":"615","author":"Snigirev","year":"2023","journal-title":"Nature"},{"key":"ol-51-19-5449-R9","doi-asserted-by":"publisher","first-page":"3692","DOI":"10.1364\/OL.34.003692","type":"journal-article","volume":"34","author":"Roos","year":"2009","journal-title":"Opt. Lett."},{"key":"ol-51-19-5449-R10","doi-asserted-by":"publisher","first-page":"9511","DOI":"10.1364\/OE.18.009511","type":"journal-article","volume":"18","author":"Xi","year":"2010","journal-title":"Opt. Express"},{"key":"ol-51-19-5449-R11","doi-asserted-by":"publisher","first-page":"D8","DOI":"10.1364\/JOSAB.430605","type":"journal-article","volume":"38","author":"Cao","year":"2021","journal-title":"J. Opt. Soc. Am. B"},{"key":"ol-51-19-5449-R12","doi-asserted-by":"publisher","first-page":"1538","DOI":"10.1364\/AO.515530","type":"journal-article","volume":"63","author":"Chen","year":"2024","journal-title":"Appl. Opt."},{"key":"ol-51-19-5449-R13","doi-asserted-by":"publisher","first-page":"9965","DOI":"10.1364\/OE.27.009965","type":"journal-article","volume":"27","author":"Zhang","year":"2019","journal-title":"Opt. Express"},{"key":"ol-51-19-5449-R14","doi-asserted-by":"publisher","first-page":"1215","DOI":"10.1109\/3.918584","type":"journal-article","volume":"37","author":"Lim","year":"2001","journal-title":"IEEE J. Quantum Electron."},{"key":"ol-51-19-5449-R15","doi-asserted-by":"publisher","first-page":"21","DOI":"10.1186\/s43074-022-00067-z","type":"journal-article","volume":"3","author":"Wang","year":"2022","journal-title":"PhotoniX"},{"key":"ol-51-19-5449-R16","doi-asserted-by":"publisher","first-page":"109099","DOI":"10.1016\/j.optlastec.2022.109099","type":"journal-article","volume":"161","author":"Deng","year":"2023","journal-title":"Opt. Laser Technol."},{"key":"ol-51-19-5449-R17","doi-asserted-by":"publisher","first-page":"49","DOI":"10.1186\/s43074-025-00208-0","type":"journal-article","volume":"6","author":"Deng","year":"2025","journal-title":"PhotoniX"},{"key":"ol-51-19-5449-R18","doi-asserted-by":"publisher","first-page":"39885","DOI":"10.1364\/OE.437861","type":"journal-article","volume":"29","author":"Qi","year":"2021","journal-title":"Opt. Express"},{"key":"ol-51-19-5449-R19","doi-asserted-by":"publisher","first-page":"114","DOI":"10.1364\/OL.412511","type":"journal-article","volume":"46","author":"Zhu","year":"2021","journal-title":"Opt. Lett."}],"container-title":["Optics Letters"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/opg.optica.org\/viewmedia.cfm?URI=ol-51-19-5449&seq=0","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T14:31:52Z","timestamp":1790173912000},"score":1,"resource":{"primary":{"URL":"https:\/\/opg.optica.org\/abstract.cfm?URI=ol-51-19-5449"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,9,23]]},"references-count":19,"journal-issue":{"issue":"19","published-online":{"date-parts":[[2026]]},"published-print":{"date-parts":[[2026]]}},"URL":"https:\/\/doi.org\/10.1364\/ol.612571","relation":{},"ISSN":["0146-9592","1539-4794"],"issn-type":[{"value":"0146-9592","type":"print"},{"value":"1539-4794","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,9,23]]},"assertion":[{"value":"Optica Publishing Group","name":"publisher","label":"This article is maintained by"},{"value":"https:\/\/doi.org\/10.1364\/OL.612571","name":"articlelink","label":"Crossref DOI link to publisher maintained version"},{"value":"letter","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":"31 July 2026","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"31 August 2026","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"23 September 2026","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}},{"value":"\u00a9 2026 Optica Publishing Group. All rights, including for text and data mining (TDM), Artificial Intelligence (AI) training, and similar technologies, are reserved.","name":"copyright","label":"Copyright"}]}}