Please use this identifier to cite or link to this item: https://doi.org/10.1038/srep13355
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dc.titleA low-phase-noise 18GHz Kerr frequency microcomb phase-locked over 65THz
dc.contributor.authorHuang, S.-W
dc.contributor.authorYang, J
dc.contributor.authorLim, J
dc.contributor.authorZhou, H
dc.contributor.authorYu, M
dc.contributor.authorKwong, D.-L
dc.contributor.authorWong, C.W
dc.date.accessioned2020-10-26T09:00:22Z
dc.date.available2020-10-26T09:00:22Z
dc.date.issued2015
dc.identifier.citationHuang, S.-W, Yang, J, Lim, J, Zhou, H, Yu, M, Kwong, D.-L, Wong, C.W (2015). A low-phase-noise 18GHz Kerr frequency microcomb phase-locked over 65THz. Scientific Reports 5 : 13355. ScholarBank@NUS Repository. https://doi.org/10.1038/srep13355
dc.identifier.issn2045-2322
dc.identifier.urihttps://scholarbank.nus.edu.sg/handle/10635/180443
dc.description.abstractLaser frequency combs are coherent light sources that simultaneously provide pristine frequency spacings for precision metrology and the fundamental basis for ultrafast and attosecond sciences. Recently, nonlinear parametric conversion in high-Q microresonators has been suggested as an alternative platform for optical frequency combs, though almost all in 100GHz frequencies or more. Here we report a low-phase-noise on-chip Kerr frequency comb with mode spacing compatible with high-speed silicon optoelectronics. The waveguide cross-section of the silicon nitride spiral resonator is designed to possess small and flattened group velocity dispersion, so that the Kerr frequency comb contains a record-high number of 3,600 phase-locked comb lines. We study the single-sideband phase noise as well as the long-term frequency stability and report the lowest phase noise floor achieved to date with â '130 dBc/Hz at 1MHz offset for the 18GHz Kerr comb oscillator, along with feedback stabilization to achieve frequency Allan deviations of 7×10 â '11 in 1s. The reported system is a promising compact platform for achieving self-referenced Kerr frequency combs and also for high-capacity coherent communication architectures.
dc.publisherNature Publishing Group
dc.rightsAttribution 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.sourceUnpaywall 20201031
dc.typeArticle
dc.contributor.departmentELECTRICAL AND COMPUTER ENGINEERING
dc.description.doi10.1038/srep13355
dc.description.sourcetitleScientific Reports
dc.description.volume5
dc.description.page13355
dc.published.statepublished
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