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

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.

[1]  Zhaolin Lu,et al.  Nanoplasmonic directional couplers and Mach-Zehnder interferometers , 2009 .

[2]  S. Pereira,et al.  Poly( p -phenylenevinylene) derivatives: new promising materials for nonlinear all-optical waveguide switching , 2002 .

[3]  Huawei Zhao,et al.  Novel optical directional coupler based on surface plasmon polaritons , 2008 .

[4]  Pierre Berini,et al.  Demonstration of integrated optics elements based on long-ranging surface plasmon polaritons. , 2005, Optics express.

[5]  D. Pile,et al.  Two-dimensionally localized modes of a nanoscale gap plasmon waveguide , 2005 .

[6]  Mark L. Brongersma,et al.  Plasmonics: the next chip-scale technology , 2006 .

[7]  C Chen,et al.  Efficient and accurate numerical analysis of multilayer planar optical waveguides in lossy anisotropic media. , 2000, Optics express.

[8]  Sheng Lan,et al.  Sharp and asymmetric transmission response in metal-dielectric-metal plasmonic waveguides containing Kerr nonlinear media. , 2010, Optics express.

[9]  Peter Nordlander,et al.  Optical properties of metallodielectric nanostructures calculated using the finite difference time domain method , 2004 .

[10]  Ian J. Hodgkinson,et al.  Thin-films field-transfer matrix theory of planar multilayer waveguides and reflection from prism-loaded waveguides , 1984 .

[11]  Laurent Markey,et al.  Wavelength-selective directional coupling with dielectric-loaded plasmonic waveguides. , 2009, Optics letters.

[12]  V. Van,et al.  Wideband Y-splitter and aperture-assisted coupler based on sub-diffraction confined plasmonic slot waveguides , 2010 .

[13]  Pei Wang,et al.  All-optical switching in subwavelength metallic grating structure containing nonlinear optical materials. , 2008, Optics letters.

[14]  W. Barnes,et al.  Surface plasmon subwavelength optics , 2003, Nature.

[15]  Harald Ditlbacher,et al.  Dielectric stripes on gold as surface plasmon waveguides: Bends and directional couplers , 2007 .

[16]  G. Veronis,et al.  Crosstalk between three-dimensional plasmonic slot waveguides. , 2008 .

[17]  Liu Liu,et al.  Ultra-compact directional couplers and Mach–Zehnder interferometers employing surface plasmon polaritons , 2006 .

[18]  J. Dionne,et al.  Plasmon slot waveguides: Towards chip-scale propagation with subwavelength-scale localization , 2006 .