High-Speed Low Power Plasmonic Mach-Zehnder Modulator with Small Foot-Print | ||
| The Modares Journal of Electrical Engineering | ||
| Article 5, Volume 14, Issue 4, 2015, Pages 35-39 PDF (361.98 K) | ||
| Authors | ||
| Babak Janjan1; Abbas Zarifkar* 2; Abbas Zarifkar* 2; Mehdi Miri3 | ||
| 1Faculty of Electrical and Computer Engineering University student Shira | ||
| 2Department of Communications and Electronics, School of Electrical and Computer Engineering, Shiraz University, Shiraz, Iran. | ||
| 3Assistant Professor of Electrical and Computer Engineering Department of Shiraz University | ||
| Abstract | ||
| In this manuscript a compact high speed optical Mach-Zehnder modulator with very low energy consumption based on hybrid plasmonic waveguide is presented. Compared to dielectric waveguide-based structures, large propagation constant of optical modes in hybrid plasmonic waveguides reduces the propagation length required for attaining necessary phase shift for proper operation of Mach-Zehnder interferometer. On the other hand, strong light confinement in hybrid plasmonic waveguide facilitates realization of relatively short bends (with small bend radius) and compact Y-junctions which in turn reduces the overall footprint of modulator. Our simulations show theoretical modulation speed of more than 1 THz and very low energy consumption about 17 fJ/bit. In addition, the modulation depths as high as 25 dB are achievable by applying voltages between + 3 V and -3 V, in a push-pull configuration. Apart from electrodes, the overall footprint is about ~120 mm2 which is, based on our knowledge, very smaller than that of common Mach-Zehnder modulators. | ||
| Keywords | ||
| Hybrid plasmonic waveguide; Mach-Zehnder interferometer; Optical modulator | ||
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