{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,2]],"date-time":"2026-10-02T18:52:46Z","timestamp":1790967166912,"version":"4.1.0"},"reference-count":21,"publisher":"Optica Publishing Group","issue":"20","license":[{"start":{"date-parts":[[2026,10,2]],"date-time":"2026-10-02T00:00:00Z","timestamp":1790899200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/doi.org\/10.1364\/OA_License_v2#VOR"},{"start":{"date-parts":[[2026,10,2]],"date-time":"2026-10-02T00:00:00Z","timestamp":1790899200000},"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":["62471478"],"award-info":[{"award-number":["62471478"]}],"id":[{"id":"https:\/\/ror.org\/01h0zpd94","id-type":"ROR","asserted-by":"publisher"}]},{"name":"National Natural Science Foundation of China","award":["62201595"],"award-info":[{"award-number":["62201595"]}],"id":[{"id":"https:\/\/ror.org\/01h0zpd94","id-type":"ROR","asserted-by":"publisher"}]},{"name":"China Postdoctoral Science Foundation","award":["GZB20230983"],"award-info":[{"award-number":["GZB20230983"]}],"id":[{"id":"https:\/\/ror.org\/0426zh255","id-type":"ROR","asserted-by":"publisher"}]}],"content-domain":{"domain":["opg.optica.org"],"crossmark-restriction":false},"short-container-title":["Opt. Lett."],"published-print":{"date-parts":[[2026,10,15]]},"abstract":"<jats:p>The expansion of wireless communications toward carrier frequencies beyond 70\u2009GHz confronts conventional superheterodyne receivers with fundamental challenges, particularly the performance degradation of high-frequency local oscillators (LOs) and mixers. Microwave photonics offers a promising solution for high-frequency signal processing by leveraging the intrinsic bandwidth and low timing jitter of optical devices. In this Letter, we present a photonic subsampling receiver that combines a femtosecond mode-locked laser (MLL) with a repetition rate of approximately 1\u2009GHz and a thin-film lithium niobate (TFLN) modulator with a bandwidth of 110\u2009GHz. Through photonic frequency mixing, optoelectronic conversion, and low-pass filtering, carriers up to 110\u2009GHz are down-converted to a single 0\u2013500\u2009MHz intermediate frequency (IF) band. A commercial low-bandwidth analog-to-digital converter (ADC) then performs the digitization. The system achieves an effective number of bits (ENOB) of 4.1 at 109.99\u2009GHz, with a timing jitter of 6.4 fs. Spurious suppression exceeds 30\u2009dB across the entire measured band without any hardware reconfiguration. This architecture eliminates high-frequency electronic components, offering a potential front-end solution for future millimeter-wave communications.<\/jats:p>","DOI":"10.1364\/ol.608760","type":"journal-article","created":{"date-parts":[[2026,10,2]],"date-time":"2026-10-02T17:53:32Z","timestamp":1790963612000},"page":"5649","update-policy":"https:\/\/doi.org\/10.1364\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Wideband photonic subsampling up to 110 GHz at a 1-GHz sampling rate using a thin-film lithium niobate modulator"],"prefix":"10.1364","volume":"51","author":[{"ORCID":"https:\/\/orcid.org\/0009-0006-8398-0578","authenticated-orcid":true,"given":"Fujian","family":"Yu","sequence":"first","affiliation":[{"name":"National University of Defense Technology"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ke","family":"Yin","sequence":"additional","affiliation":[{"name":"National University of Defense Technology"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wei","family":"Dong","sequence":"additional","affiliation":[{"name":"National University of Defense Technology"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tao","family":"Zhang","sequence":"additional","affiliation":[{"name":"National University of Defense Technology"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guoning","family":"Zhang","sequence":"additional","affiliation":[{"name":"National University of Defense Technology"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ziyang","family":"Zhu","sequence":"additional","affiliation":[{"name":"National University of Defense Technology"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiangai","family":"Cheng","sequence":"additional","affiliation":[{"name":"National University of Defense Technology"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3343-5548","authenticated-orcid":true,"given":"Tian","family":"Jiang","sequence":"additional","affiliation":[{"name":"National University of Defense Technology"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"285","published-online":{"date-parts":[[2026,10,2]]},"reference":[{"key":"ol-51-20-5649-R1","doi-asserted-by":"publisher","first-page":"2326","DOI":"10.1109\/COMST.2024.3385908","type":"journal-article","volume":"26","author":"Jiang","year":"2024","journal-title":"IEEE Commun. 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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"}]}}