Enhanced four-wave mixing in graphene-silicon slow-light photonic crystal waveguides

Hao Zhou, Tingyi Gu, James F. McMillan, Nicholas Petrone, Arend Van Der Zande, James C. Hone, Mingbin Yu, Guoqiang Lo, Dim Lee Kwong, Guoying Feng, Shouhuan Zhou, Chee Wei Wong

Research output: Contribution to journalArticlepeer-review


We demonstrate the enhanced four-wave mixing of monolayer graphene on slow-light silicon photonic crystal waveguides. 200-μm interaction length, a four-wave mixing conversion efficiency of -23dB is achieved in the graphene-silicon slow-light hybrid, with an enhanced 3-dB conversion bandwidth of about 17nm. Our measurements match well with nonlinear coupled-mode theory simulations based on the measured waveguide dispersion, and provide an effective way for all-optical signal processing in chip-scale integrated optics.

Original languageEnglish (US)
Article number091111
JournalApplied Physics Letters
Issue number9
StatePublished - Sep 1 2014
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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