{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["12(7)"],"submitter":["Song Y"],"pubmed_abstract":["The ability to generate efficient and coherent frequency combs using photonic integrated circuits offers tremendous potential for a range of applications. X-cut thin-film lithium niobate (TFLN) is promising for developing next-generation microcomb-driven photonic systems, providing a diversity of functionalities through combined [Formula: see text] and electro-optic effects. Normal-dispersion Kerr combs are critically needed because of their standout advantages, yet this dispersion regime remains unexplored on x-cut TFLN. Here, we design and demonstrate microresonators suitable for the robust generation of normal-dispersion Kerr combs. We show Kerr combs that substantially surpass state-of-the-art microcombs on x-cut TFLN in key performance metrics and an ultrabroad frequency comb whose ex"],"journal":["Science advances"],"pagination":["eaeb5758"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC12904183"],"repository":["biostudies-literature"],"pubmed_title":["High-efficiency and broadband Kerr comb generation in normal-dispersion x-cut lithium niobate microresonators."],"pmcid":["PMC12904183"],"pubmed_authors":["Li Z","Lippok N","Loncar M","Erkintalo M","Zhu X","Song Y"],"additional_accession":[]},"is_claimable":false,"name":"High-efficiency and broadband Kerr comb generation in normal-dispersion x-cut lithium niobate microresonators.","description":"The ability to generate efficient and coherent frequency combs using photonic integrated circuits offers tremendous potential for a range of applications. X-cut thin-film lithium niobate (TFLN) is promising for developing next-generation microcomb-driven photonic systems, providing a diversity of functionalities through combined [Formula: see text] and electro-optic effects. Normal-dispersion Kerr combs are critically needed because of their standout advantages, yet this dispersion regime remains unexplored on x-cut TFLN. Here, we design and demonstrate microresonators suitable for the robust generation of normal-dispersion Kerr combs. We show Kerr combs that substantially surpass state-of-the-art microcombs on x-cut TFLN in key performance metrics and an ultrabroad frequency comb whose ex","dates":{"release":"2026-01-01T00:00:00Z","publication":"2026 Feb","modification":"2026-07-15T16:40:14.652Z","creation":"2026-07-07T03:08:46.067Z"},"accession":"S-EPMC12904183","cross_references":{"pubmed":["41686908"],"doi":["10.1126/sciadv.aeb5758"]}}