A nonlinear plasmonic waveguide based all-optical bidirectional switching

Xiaoqiang Bana, Xingxing Pang, Xiaohui Li*, Bin Hu, Yixuan Guo, Hairong Zheng

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

In this paper, an all-optical switching with a nanometer coupled ring resonator is demonstrated based on the nonlinear material. By adjusting the light intensity, we implement the resonance wavelength from 880 nm to 940 nm in the nonlinear material structure monocyclic. In the bidirectional switch structure, the center wavelength (i.e. 880 nm) is fixed. By changing the light intensity from I=0 to I=53.1MW∕cm2, the function of optical switching can be obtained. The results demonstrate that both the single-ring cavity and the T-shaped double-ring structure can realize the optical switching effect. This work takes advantage of the simple structure. The single-ring cavity plasmonic switches have many advantages, such as nanoscale size, low pumping light intensity, ultrafast response time (femtosecond level), etc. It is expected that the proposed all-optical integrated devices can be potentially applied in optical communication, signal processing, and signal sensing, etc.

Original languageEnglish
Pages (from-to)124-127
Number of pages4
JournalOptics Communications
Volume406
DOIs
Publication statusPublished - 1 Jan 2018
Externally publishedYes

Keywords

  • All-optical switching
  • Photonic integrated circuits
  • Surface plasmon
  • Waveguide

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