6533b82afe1ef96bd128b979
RESEARCH PRODUCT
Thermo-optic control of dielectric-loaded plasmonic Mach-Zehnder interferometers and directional coupler switches
Alain DereuxLaurent MarkeyJacek GosciniakSergey I. Bozhevolnyisubject
Materials sciencePhysics::OpticsBioengineering02 engineering and technologyDielectricMach–Zehnder interferometer01 natural sciencesWaveguide (optics)WAVE-GUIDESOptics0103 physical sciencesAstronomical interferometerGeneral Materials ScienceElectrical and Electronic EngineeringPlasmon010302 applied physicsbusiness.industryMechanical EngineeringGeneral Chemistry021001 nanoscience & nanotechnologyWavelengthMechanics of MaterialsModulationOptoelectronicsPower dividers and directional couplers0210 nano-technologybusinessdescription
We report detailed experimental studies of compact fiber-coupled dielectric-loaded plasmonic waveguide components-Mach-Zehnder interferometers (MZIs) and directional couplers (DCs)-whose operation at telecom wavelengths is controlled via the thermo-optic effect by electrically heating the gold stripe of dielectric-loaded plasmonic waveguides. The effect of the gaps isolating the heated part of the waveguide from the rest of the structure was examined showing the presence of a Fabry-Perot cavity in this MZI arm. Wavelength-dependent modulation is demonstrated with MZI-based components, and wavelength dependent low power (similar to 0.92 mW) rerouting is achieved with DC switches. Furthermore, simulations were performed to confirm the switching characteristics of the components. We report detailed experimental studies of compact fiber-coupled dielectric-loaded plasmonic waveguide components-Mach-Zehnder interferometers (MZIs) and directional couplers (DCs)-whose operation at telecom wavelengths is controlled via the thermo-optic effect by electrically heating the gold stripe of dielectric-loaded plasmonic waveguides. The effect of the gaps isolating the heated part of the waveguide from the rest of the structure was examined showing the presence of a Fabry-Perot cavity in this MZI arm. Wavelength-dependent modulation is demonstrated with MZI-based components, and wavelength dependent low power (similar to 0.92 mW) rerouting is achieved with DC switches. Furthermore, simulations were performed to confirm the switching characteristics of the components.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-01-01 |