In this paper, a new concept and geometry are proposed for plasmonic modulators, whose operation is based on the coupling between two plasmonic slots. An electro-optic polymer is exploited as an active material, and the device can be implemented within a Silicon Photonics platform. The device operates at 1550 nm wavelength, typical of data center or long-haul telecommunication systems. For a device length of around 16 μm, the simulated extinction ratio and optical insertion loss are 20.98 dB and 4.26 dB, respectively. Both performances compare favourably with those of Mach-Zehnder plasmonic modulators from the literature. The simulation is based on the Time Domain Finite Differences (FDTD) and Finite-Difference Eigenmode (FDE) methods.

Simulation of electro optic modulators based on plasmonic directional couplers / Ghomashi, Mohammadamin; Tibaldi, Alberto; Bertazzi, Francesco; Vallone, Marco; Goano, Michele; Ghione, Giovanni. - STAMPA. - (2020), pp. 9-10. (Intervento presentato al convegno 20th International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD 2020) tenutosi a Online conference nel September 2020) [10.1109/NUSOD49422.2020.9217744].

Simulation of electro optic modulators based on plasmonic directional couplers

Ghomashi, Mohammadamin;Tibaldi, Alberto;Bertazzi, Francesco;Vallone, Marco;Goano, Michele;Ghione, Giovanni
2020

Abstract

In this paper, a new concept and geometry are proposed for plasmonic modulators, whose operation is based on the coupling between two plasmonic slots. An electro-optic polymer is exploited as an active material, and the device can be implemented within a Silicon Photonics platform. The device operates at 1550 nm wavelength, typical of data center or long-haul telecommunication systems. For a device length of around 16 μm, the simulated extinction ratio and optical insertion loss are 20.98 dB and 4.26 dB, respectively. Both performances compare favourably with those of Mach-Zehnder plasmonic modulators from the literature. The simulation is based on the Time Domain Finite Differences (FDTD) and Finite-Difference Eigenmode (FDE) methods.
2020
978-1-7281-6086-3
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2848154