Invited Article : Enhanced four-wave mixing in waveguides integrated with graphene oxide

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Yunyi Yang
  • Jiayang Wu
  • Xingyuan Xu
  • Yao Liang
  • Brent E. Little
  • Roberto Morandotti
  • Baohua Jia
  • David J. Moss

Detail(s)

Original languageEnglish
Article number120803
Journal / PublicationAPL Photonics
Volume3
Issue number12
Online published24 Oct 2018
Publication statusPublished - Dec 2018

Link(s)

Abstract

We demonstrate enhanced four-wave mixing (FWM) in doped silica waveguides integrated with graphene oxide (GO) layers. Owing to strong mode overlap between the integrated waveguides and GO films that have a high Kerr nonlinearity and low loss, the FWM efficiency of the hybrid integrated waveguides is significantly improved. We perform FWM measurements for different pump powers, wavelength detuning, GO coating lengths, and number of GO layers. Our experimental results show good agreement with theory, achieving up to ∼9.5-dB enhancement in the FWM conversion efficiency for a 1.5-cm-long waveguide integrated with 2 layers of GO. We show theoretically that for different waveguide geometries an enhancement in FWM efficiency of ∼20 dB can be obtained in the doped silica waveguides and more than 30 dB in silicon nanowires and slot waveguides. This demonstrates the effectiveness of introducing GO films into integrated photonic devices in order to enhance the performance of nonlinear optical processes.

Research Area(s)

Citation Format(s)

Invited Article: Enhanced four-wave mixing in waveguides integrated with graphene oxide. / Yang, Yunyi; Wu, Jiayang; Xu, Xingyuan et al.
In: APL Photonics, Vol. 3, No. 12, 120803, 12.2018.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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