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The approach is suitable for frequency conversion of ultrashort lasers on a chip. This approach presents a promising alternative to periodically poled lithium niobate (PPLN) for broadband frequency conversion applications.\n                  <\/jats:p>","DOI":"10.1364\/ao.586578","type":"journal-article","created":{"date-parts":[[2026,1,7]],"date-time":"2026-01-07T15:00:09Z","timestamp":1767798009000},"page":"1511","update-policy":"https:\/\/doi.org\/10.1364\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Broadband birefringence phase-matched second-harmonic generation in a slightly curved lithium niobate-on-insulator waveguide"],"prefix":"10.1364","volume":"65","author":[{"ORCID":"https:\/\/orcid.org\/0009-0007-0829-9210","authenticated-orcid":true,"given":"Xingze","family":"Song","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/0220qvk04","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5267-4061","authenticated-orcid":true,"given":"Yongzhi","family":"Tang","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/0220qvk04","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tingting","family":"Ding","sequence":"additional","affiliation":[{"name":"Shanghai University of Engineering Science"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wenjun","family":"Ding","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/0220qvk04","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jing","family":"Qiu","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/0220qvk04","id-type":"ROR","asserted-by":"publisher"}]},{"name":"Zhangjiang Laboratory"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zengya","family":"Li","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/0220qvk04","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jianbiao","family":"Dai","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/0220qvk04","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hao","family":"Li","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/0220qvk04","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shijie","family":"Liu","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/0220qvk04","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xianfeng","family":"Chen","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/0220qvk04","id-type":"ROR","asserted-by":"publisher"}]},{"name":"Zhangjiang Laboratory"},{"name":"Shanghai Research Center for Quantum Sciences"},{"name":"Shandong Normal University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jing","family":"Zhang","sequence":"additional","affiliation":[{"name":"Chinese Academy of Sciences"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4442-1176","authenticated-orcid":true,"given":"Yuanlin","family":"Zheng","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/0220qvk04","id-type":"ROR","asserted-by":"publisher"}]},{"name":"Zhangjiang Laboratory"},{"name":"Shanghai Research Center for Quantum Sciences"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"285","published-online":{"date-parts":[[2026,2,3]]},"reference":[{"key":"ao-65-5-1511-R1","doi-asserted-by":"publisher","first-page":"688","DOI":"10.1364\/OPTICA.489383","type":"journal-article","volume":"10","author":"Zhang","year":"2023","journal-title":"Optica"},{"key":"ao-65-5-1511-R2","doi-asserted-by":"publisher","first-page":"3915","DOI":"10.1360\/TB-2022-0447","type":"journal-article","volume":"67","author":"Wu","year":"2022","journal-title":"Chin. 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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"}]}}