A compact and high-speed plasmonic slot waveguide coupled with photonic waveguide based 2x2 electro-optic switch

Aditya Arya; R. Manivasakan

doi:10.1117/12.2212382

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1 March 2016 A compact and high-speed plasmonic slot waveguide coupled with photonic waveguide based 2x2 electro-optic switch

Aditya Arya, R. Manivasakan

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Proceedings Volume 9750, Integrated Optics: Devices, Materials, and Technologies XX; 97501T (2016) https://doi.org/10.1117/12.2212382
Event: SPIE OPTO, 2016, San Francisco, California, United States

Abstract

We report an electro-optic switch at 1.55 μm wavelength based on Mach-Zehnder Interferometer (MZI) in which, the MZI arms and the input-output 3-dB couplers are designed using plasmonic and photonic waveguides re- spectively. More than 90% photons are successfully converted into surface plasmons through tapering the both photonic as well as plasmonic waveguide. The plasmonic and photonic mode profiles, interaction between plas- monic and RF fields, confinement of plasmonic field in plasmonic waveguide, and trade-off between loss and confinement are thoroughly examined before the combined optical and electrical simulation of the switch. The switching voltage is less than 6 Volts, the MZI arm length is only 15 μm, the crosstalk is less than -35 dB, and the maximum switching speed is 11.55 ps. The footprint of the switch is only 290x50 μm2.

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Aditya Arya and R. Manivasakan "A compact and high-speed plasmonic slot waveguide coupled with photonic waveguide based 2x2 electro-optic switch", Proc. SPIE 9750, Integrated Optics: Devices, Materials, and Technologies XX, 97501T (1 March 2016); https://doi.org/10.1117/12.2212382

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