{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,24]],"date-time":"2026-09-24T02:46:01Z","timestamp":1790217961459,"version":"4.1.0"},"reference-count":28,"publisher":"Optica Publishing Group","issue":"7","license":[{"start":{"date-parts":[[2025,3,20]],"date-time":"2025-03-20T00:00:00Z","timestamp":1742428800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/doi.org\/10.1364\/OA_License_v2#VOR"},{"start":{"date-parts":[[2025,3,20]],"date-time":"2025-03-20T00:00:00Z","timestamp":1742428800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/opg.optica.org\/policies\/opg-tdm-policy.json"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["62105174"],"award-info":[{"award-number":["62105174"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["62105173"],"award-info":[{"award-number":["62105173"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["62105209"],"award-info":[{"award-number":["62105209"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Major key project of PCL"},{"DOI":"10.13039\/501100021171","name":"Basic and Applied Basic Research Foundation of Guangdong Province","doi-asserted-by":"publisher","award":["2024A1515030297"],"award-info":[{"award-number":["2024A1515030297"]}],"id":[{"id":"10.13039\/501100021171","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["opg.optica.org"],"crossmark-restriction":false},"short-container-title":["Opt. Lett."],"published-print":{"date-parts":[[2025,4,1]]},"abstract":"<jats:p>A narrow-linewidth laser based on self-injection locking has found widespread applications, including wavelength division multiplexing, sensing, and LiDAR detection. Although self-injection locking can support multi-wavelength operation, conventional implementations have typically been bulky and constrained by limited wavelength spacing. In this paper, we demonstrate an integrated multi-wavelength self-injection locking (MWSIL) laser capable of generating multiple narrow-linewidth outputs with tunable spacing. Multi-wavelength operation is achieved through the Vernier effect in the injection locking of a single distributed feedback laser (DFB) to a Si<jats:sub>3<\/jats:sub>N<jats:sub>4<\/jats:sub>-based micro-resonator (MRR). In the experimental demonstration, the wavelength spacing of the laser is tunable from 1.155\u2005nm to 9.24\u2005nm by adjusting the phase of the cavity. The intrinsic linewidths of the multi-wavelength laser are all below 1.6\u2005kHz, with the optimal linewidth at 125\u2005Hz, representing up to a 703-fold improvement compared to the free-running state. Additionally, the laser exhibits mode-hop-free frequency tuning over a range of 2.6\u2005GHz. The MWSIL laser provides an effective on-chip solution for generating a tunable, multi-wavelength optical source with ultra-narrow linewidth.<\/jats:p>","DOI":"10.1364\/ol.550686","type":"journal-article","created":{"date-parts":[[2025,2,27]],"date-time":"2025-02-27T15:00:40Z","timestamp":1740668440000},"page":"2215","update-policy":"https:\/\/doi.org\/10.1364\/crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Tunable multi-wavelength generation of an integrated self-injection locking laser based on the Vernier effect"],"prefix":"10.1364","volume":"50","author":[{"given":"Dongwei","family":"Zhuang","sequence":"first","affiliation":[{"name":"Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences"},{"name":"University of Chinese Academy of Sciences"},{"name":"Peng Cheng Laboratory"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Quanxin","family":"Na","sequence":"additional","affiliation":[{"name":"Peng Cheng Laboratory"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qijie","family":"Xie","sequence":"additional","affiliation":[{"name":"Peng Cheng Laboratory"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Li","family":"Wang","sequence":"additional","affiliation":[{"name":"Peng Cheng Laboratory"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Baisong","family":"Chen","sequence":"additional","affiliation":[{"name":"Jilin University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chunyang","family":"Ma","sequence":"additional","affiliation":[{"name":"Peng Cheng Laboratory"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"LanXuan","family":"Zhang","sequence":"additional","affiliation":[{"name":"Peng Cheng Laboratory"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lei","family":"Wang","sequence":"additional","affiliation":[{"name":"Peng Cheng Laboratory"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Li","family":"Qin","sequence":"additional","affiliation":[{"name":"Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences"},{"name":"Peng Cheng Laboratory"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Junfeng","family":"Song","sequence":"additional","affiliation":[{"name":"Peng Cheng Laboratory"},{"name":"Jilin University"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"285","published-online":{"date-parts":[[2025,3,20]]},"reference":[{"key":"ol-50-7-2215-R1","doi-asserted-by":"publisher","first-page":"1","DOI":"10.1063\/5.0105164","volume":"7","author":"Hermans","year":"2022","journal-title":"APL Photonics"},{"key":"ol-50-7-2215-R2","doi-asserted-by":"publisher","first-page":"1840","DOI":"10.1364\/PRJ.455165","volume":"10","author":"Chen","year":"2022","journal-title":"Photonics Res."},{"key":"ol-50-7-2215-R4","doi-asserted-by":"publisher","first-page":"1771","DOI":"10.1038\/s41467-022-29431-0","volume":"13","author":"Lihachev","year":"2022","journal-title":"Nat. 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All rights, including for text and data mining (TDM), Artificial Intelligence (AI) training, and similar technologies, are reserved.","name":"copyright","label":"Copyright"}]}}