Enhanced four-wave mixing in hybrid integrated waveguides with graphene oxide

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with ISBN/ISSN)Not applicablepeer-review

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Author(s)

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

Detail(s)

Original languageEnglish
Title of host publicationProceedinsg of SPIE
Subtitle of host publication2D Photonic Materials and Devices II
EditorsArka Majumdar, Carlos M. Torres Jr., Hui Deng
PublisherSPIE
ISBN (Electronic)9781510624832
ISBN (Print)9781510624825
Publication statusPublished - Feb 2019

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10920
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Title2D Photonic Materials and Devices II 2019
PlaceUnited States
CitySan Francisco
Period6 - 7 February 2019

Abstract

Owing to the ease of preparation as well as the tunability of its material properties, graphene oxide (GO) has become a rising star of the graphene family. In our previous work, we found that GO has an ultra-high Kerr nonlinear optical response - several orders of magnitude higher than that of silica and even silicon. Moreover, as compared with graphene, GO has much lower linear loss as well as nonlinear loss (two photon absorption (TPA)), arising from its large bandgap (2.4∼3.1 eV) being more than double the photon energy in the telecommunications band. Here, we experimentally demonstrate enhanced four-wave mixing (FWM) in hybrid integrated waveguides coated with GO films. Owing to strong mode overlap between the integrated waveguides and the high Kerr nonlinearity GO films as well as low linear and nonlinear loss, we demonstrate significant enhancement in the FWM efficiency. We achieve up to ∼9.5-dB enhancement in the conversion efficiency for a 1.5-cm-long waveguide with 2 layers of GO. We perform FWM measurements at different pump powers, wavelength detuning, GO film lengths and numbers of layers. The experimental results verify the effectiveness of introducing GO films into integrated photonic devices in order to enhance the performance of nonlinear optical processes.

Research Area(s)

  • Four-wave mixing, Graphene oxide, Integrated photonics

Bibliographic Note

Full text of this publication does not contain sufficient affiliation information. With consent from the author(s) concerned, the Research Unit(s) information for this record is based on the existing academic department affiliation of the author(s).

Citation Format(s)

Enhanced four-wave mixing in hybrid integrated waveguides with graphene oxide. / Wu, Jiayang; Yang, Yunyi; Xu, Xingyuan; Jia, Linnan; Liang, Yao; Chu, Sai T.; Little, Brent E.; Morandotti, Roberto; Jia, Baohua; Moss, David.

Proceedinsg of SPIE: 2D Photonic Materials and Devices II. ed. / Arka Majumdar; Carlos M. Torres Jr.; Hui Deng. SPIE, 2019. 109200K (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10920).

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with ISBN/ISSN)Not applicablepeer-review