Phase-locking in cascaded stimulated Brillouin scattering

Thomas F S Büttner, Christopher G. Poulton, M. J. Steel, Darren D. Hudson, Benjamin J. Eggleton

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3 Citations (Scopus)
215 Downloads (Pure)


Cascaded stimulated Brillouin scattering is a complex nonlinear optical process that results in the generation of several optical waves that are frequency shifted by an acoustic resonance frequency. Four-wave mixing (FWM) between these Brillouin shifted optical waves can create an equally spaced optical frequency comb with a stable spectral phase, i.e. a Brillouin frequency comb (BFC). Here, we investigate phase-locking of the spectral components of BFCs, considering FWM interactions arising from the Kerr-nonlinearity as well as from coupling by the acoustic field. Deriving for the first time the coupled-mode equations that include all relevant nonlinear interactions, we examine the contribution of the various nonlinear processes to phase-locking, and show that different regimes can be obtained that depend on the length scale on which the field amplitudes vary.

Original languageEnglish
Article number025003
Pages (from-to)1-11
Number of pages11
JournalNew Journal of Physics
Publication statusPublished - 1 Feb 2016

Bibliographical note

Copyright the Publishers 2016. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.


  • four-wave mixing
  • frequency comb generation
  • Kerr-nonlinearity
  • phase-locking
  • stimulated Brillouin scattering


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