Volume 14, Issue 4 (2015)                   MJEE 2015, 14(4): 35-39 | Back to browse issues page

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Janjan B, Zarifkar A, Miri M. High-Speed Low Power Plasmonic Mach-Zehnder Modulator with Small Foot-Print. MJEE 2015; 14 (4) :35-39
URL: http://mjee.modares.ac.ir/article-17-6214-en.html
1- Faculty of Electrical and Computer Engineering University student Shira
2- Department of Communications and Electronics, School of Electrical and Computer Engineering, Shiraz University, Shiraz, Iran.
3- Assistant Professor of Electrical and Computer Engineering Department of Shiraz University
Abstract:   (4739 Views)
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.
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Received: 2016/06/1 | Accepted: 2015/01/21 | Published: 2016/08/31

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