Journal article
Thermo-optic control of dielectric-loaded plasmonic Mach-Zehnder interferometers and directional coupler switches
Institute of Technology and Innovation, University of Southern Denmark, Niels Bohrs Alle 1, Odense M, Denmark. jag@iti.sdu.dk1
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-Pérot cavity in this MZI arm. Wavelength-dependent modulation is demonstrated with MZI-based components, and wavelength dependent low power (∼0.92 mW) rerouting is achieved with DC switches.
Furthermore, simulations were performed to confirm the switching characteristics of the components.
Language: | English |
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Year: | 2012 |
Pages: | 444008 |
ISSN: | 13616528 and 09574484 |
Types: | Journal article |
DOI: | 10.1088/0957-4484/23/44/444008 |