Measurement of microresonator frequency comb coherence by spectral interferometry

Optics Letters
K E WebbS G Murdoch

Abstract

We experimentally investigate the spectral coherence of microresonator optical frequency combs. Specifically, we use a spectral interference method, typically used in the context of supercontinuum generation, to explore the variation of the magnitude of the complex degree of first-order coherence across the full comb bandwidth. We measure the coherence of two different frequency combs and observe wholly different coherence characteristics. In particular, we find that the observed dynamical regimes are similar to the stable and unstable modulation instability regimes reported in previous theoretical studies. Results from numerical simulations are found to be in good agreement with experimental observations. In addition to demonstrating a new technique to assess comb stability, our results provide strong experimental support for previous theoretical analyses.

References

Dec 22, 2007·Nature·P Del'HayeT J Kippenberg
Oct 20, 2003·Optics Express·Xun GuRobert Windeler
Oct 4, 2004·Optics Express·Tal CarmonKerry Vahala
Apr 30, 2011·Science·T J KippenbergS A Diddams
Sep 3, 2011·Optics Letters·Yoshitomo OkawachiAlexander L Gaeta
Sep 10, 2011·Physical Review Letters·P Del'HayeT J Kippenberg
Jan 10, 2013·Nature Communications·C Y WangT J Kippenberg
Jun 1, 2013·Optics Letters·Stéphane Coen, Miro Erkintalo
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
Oct 4, 2014·Physical Review Letters·T HerrT J Kippenberg

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Citations

Dec 14, 2016·Optics Express·Jae K JangAlexander L Gaeta
Sep 14, 2019·Optics Letters·Bok Young KimAlexander L Gaeta
Aug 31, 2018·Optics Letters·Noel Lito B SaysonStuart G Murdoch
Jul 2, 2016·Optics Letters·Andrey B MatskoLute Maleki
Mar 4, 2020·Optics Express·Xinyang XuHanzhong Wu

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