Phase-locked, chip-based, cascaded stimulated Brillouin scattering

Thomas F S Büttner*, Moritz Merklein, Irina V. Kabakova, Darren D. Hudson, Duk Yong Choi, Barry Luther-Davies, Stephen J. Madden, Benjamin J. Eggleton

*Corresponding author for this work

Research output: Contribution to journalLetterpeer-review

36 Citations (Scopus)


Compact optical frequency comb sources with gigahertz repetition rates are desirable for a number of important applications including arbitrary optical waveform generation and direct comb spectroscopy. We report the generation of phase-locked, gigahertz repetition rate optical frequency combs in a chalcogenide photonic chip. The combs are formed via the interplay of stimulated Brillouin scattering and Kerr-nonlinear four-wave mixing in an on-chip Fabry–Perot waveguide resonator incorporating a Bragg grating. Phase-locking of the comb is confirmed with real-time measurements, and a chirp of the comb repetition rate within the pump pulse was observed. These results represent a significant step towards the realization of integrated optical frequency comb sources with gigahertz repetition rates.

Original languageEnglish
Pages (from-to)311-314
Number of pages4
Issue number5
Publication statusPublished - 20 Nov 2014
Externally publishedYes


  • Integrated optics devices
  • Nonlinear optical materials
  • Nonlinear optics, four-wave mixing
  • Scattering, stimulated Brillouin


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