Origins of clustered frequency combs in Kerr microresonators

Optics Letters
Noel Lito B SaysonStuart G Murdoch

Abstract

Recent experiments have demonstrated the generation of widely spaced parametric sidebands that can evolve into "clustered" optical frequency combs in Kerr microresonators. Here we describe the physics that underpins the formation of such clustered comb states. In particular, we show that the phase matching required for the initial sideband generation is such that (at least) one of the sidebands experiences anomalous dispersion, enabling the sideband to drive frequency comb formation via degenerate and non-degenerate four-wave mixing. We validate our proposal through a combination of experimental observations made in a magnesium-fluoride microresonator and corresponding numerical simulations. We also investigate the coherence properties of the resulting clustered frequency combs. Our findings provide valuable insights on the generation and dynamics of widely spaced parametric sidebands and clustered frequency combs in Kerr microresonators.

References

Dec 22, 2007·Nature·P Del'HayeT J Kippenberg
Oct 10, 2013·Optics Express·Florian SedlmeirHarald G L Schwefel
Feb 25, 2014·Optics Letters·Miro Erkintalo, Stéphane Coen
Mar 26, 2014·Optics Express·Victor Torres-CompanyEnrique Silvestre
May 27, 2014·Nature Photonics·Joerg PfeifleChristian Koos
Nov 3, 2016·Optics Letters·Andrey B MatskoLute Maleki
Jun 2, 2017·Optics Letters·Shu-Wei HuangChee Wei Wong
Dec 15, 2017·Optics Letters·Noel Lito B SaysonStuart G Murdoch

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Citations

Jul 8, 2020·Optics Letters·Anatoliy A SavchenkovSkip Williams
Feb 29, 2020·Optics Letters·Yulong TangHong X Tang

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