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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 20 — Sep. 27, 2010
  • pp: 21030–21037

Directional coupler and nonlinear Mach-Zehnder interferometer based on metal-insulator-metal plasmonic waveguide

Mingbo Pu, Na Yao, Chenggang Hu, Xuecheng Xin, Zeyu Zhao, Changtao Wang, and Xiangang Luo  »View Author Affiliations

Optics Express, Vol. 18, Issue 20, pp. 21030-21037 (2010)

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Directional coupler (DC) and nonlinear Mach-Zehnder interferometer (MZI) based on metal-insulator-metal (MIM) plasmonic waveguide are investigated numerically. We show that the coupling length increases almost linearly with the wavelength and this property is utilized in the design of wavelength division multiplexer (WDM). A nonlinear MZI, with one branch filled with Kerr nonlinear medium, is built to ensure controlling light with light. Employing nonlinear processes including self-phase modulation (SPM) and cross-phase modulation (XPM), intensity-based router and all-optical switch are realized.

© 2010 OSA

OCIS Codes
(190.0190) Nonlinear optics : Nonlinear optics
(230.7370) Optical devices : Waveguides
(240.6680) Optics at surfaces : Surface plasmons
(250.5300) Optoelectronics : Photonic integrated circuits

ToC Category:
Optics at Surfaces

Original Manuscript: July 27, 2010
Revised Manuscript: September 5, 2010
Manuscript Accepted: September 16, 2010
Published: September 20, 2010

Mingbo Pu, Na Yao, Chenggang Hu, Xuecheng Xin, Zeyu Zhao, Changtao Wang, and Xiangang Luo, "Directional coupler and nonlinear Mach-Zehnder interferometer based on metal-insulator-metal plasmonic waveguide," Opt. Express 18, 21030-21037 (2010)

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