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Lett."],"published-print":{"date-parts":[[2025,2,1]]},"abstract":"<jats:p>We introduce a method that synergistically combines the distinct phase noise profiles of a dielectric resonator oscillator (DRO) and bichromatic Brillouin laser oscillator (BBLO), for high spectral purity microwave generation. Typically, free-running DROs exhibit high-phase noise at low-frequency offsets but ultra-low-phase noise at high offsets. In contrast, BBLOs based on photonic devices demonstrate very low-phase noise at low offsets, yet they experience increased phase noise at higher offsets due to photodetector shot noise. By locking the DRO to a frequency-matching BBLO, our experiment combines the merits of both oscillators and generates X-band microwave with exceptional phase noise across the entire frequency offset range, reaching \u221293\u2005dBc\/Hz at 100\u2005Hz offset and \u2212171\u2005dBc\/Hz at 10\u2005MHz offset.<\/jats:p>","DOI":"10.1364\/ol.550727","type":"journal-article","created":{"date-parts":[[2025,1,16]],"date-time":"2025-01-16T13:00:19Z","timestamp":1737032419000},"page":"988","update-policy":"https:\/\/doi.org\/10.1364\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Synergizing the low-phase noise characteristics of a dielectric resonator oscillator and a bichromatic Brillouin laser oscillator"],"prefix":"10.1364","volume":"50","author":[{"given":"Jiahao","family":"Hu","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/04qr3zq92","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Siyi","family":"Xue","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/04qr3zq92","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yanlan","family":"Xiao","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/04qr3zq92","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chenlin","family":"Wu","sequence":"additional","affiliation":[{"name":"Chengdu Simon Electronic Technology Co., Ltd"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Huashun","family":"Wen","sequence":"additional","affiliation":[{"name":"Institute of Intelligent Photonics, Nankai University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Heng","family":"Zhou","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/04qr3zq92","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"285","published-online":{"date-parts":[[2025,1,28]]},"reference":[{"key":"ol-50-3-988-R2","doi-asserted-by":"publisher","first-page":"341","DOI":"10.1038\/nature13078","volume":"507","author":"Ghelfi","year":"2014","journal-title":"Nature"},{"key":"ol-50-3-988-R3","doi-asserted-by":"publisher","first-page":"25","DOI":"10.1038\/nphoton.2016.235","volume":"11","author":"Riehle","year":"2017","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"}]}}