Spectral Dynamics in Broadband Frequency Combs with Overlapping Harmonics

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dc.contributor.authorFan, Weichen
dc.contributor.authorAyhan, Furkan
dc.contributor.authorWildi, Thibault
dc.contributor.authorVolkov, Mikhail
dc.contributor.authorSeer, Ali
dc.contributor.authorLudwig, Markus
dc.contributor.authorVoumard, Thibault
dc.contributor.authorBrodschelm, Andreas
dc.contributor.authorBrasch, Victor
dc.contributor.authorVillanueva, Luis Guillermo
dc.contributor.authorHerr, Tobias
dc.date.accessioned2026-02-18T20:06:41Z
dc.date.available2026-02-18T20:06:41Z
dc.date.issued2025-11-21
dc.description.abstractOptical frequency combs and their spectra of evenly spaced discrete laser lines are essential to modern time and frequency metrology. Recent advances in integrated photonic waveguides enable efficient nonlinear broadening of an initially narrowband frequency comb to multi-octave bandwidth. Here, we study the nonlinear dynamics in the generation of such ultrabroadband spectra where different harmonics of the comb can overlap. We show that a set of interleaved combs with different offset frequencies extending across the entire spectrum can emerge, which can be arranged into a practically evenly spaced ultrabroadband frequency comb when the initial comb is offset-free.
dc.identifier.citationPhysical Review Letters, vol. 135 (21), pp. 213801
dc.identifier.doi10.1103/kgd7-52hy
dc.identifier.issn0031-9007, 1079-7114
dc.identifier.urihttps://hdl.handle.net/20.500.12839/1995
dc.identifier.urlhttps://link.aps.org/doi/10.1103/kgd7-52hy
dc.titleSpectral Dynamics in Broadband Frequency Combs with Overlapping Harmonics
dc.typeJournal Article
dc.type.csemdivisionsBU-I
dc.type.csemresearchareasPhotonics
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