{"id":983,"date":"2021-06-01T17:14:12","date_gmt":"2021-06-01T17:14:12","guid":{"rendered":"https:\/\/parque.online\/polariton\/?p=983"},"modified":"2023-09-10T18:42:39","modified_gmt":"2023-09-10T18:42:39","slug":"ultra-compact-terabit-plasmonic-modulator-array-2","status":"publish","type":"page","link":"https:\/\/www.polariton.ch\/polarisandbox\/?page_id=983","title":{"rendered":"Ultra-Compact Terabit Plasmonic Modulator Array"},"content":{"rendered":"

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Ultra-Compact Terabit Plasmonic Modulator Array <\/span><\/h2>\n<\/h1>\n
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Koch, Ueli, et al. \u201cUltra-compact terabit plasmonic modulator array.\u201d\u00a0<\/span>Journal of Lightwave Technology<\/i>\u00a037.5 (2019): 1484-1491.<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Abstract:<\/span><\/p>\n

A new plasmonic transmitter solution offering 0.8 Tbit\/s on an ultra-compact 90 \u03bcm \u00d7 5.5 \u03bcm footprint is introduced. It comprises a densely arranged four-channel plasmonic phase modulator array that directly interconnects an optical fiber array. Each plasmonic modulator features high-index grating couplers-for direct and efficient conversion from a fiber mode to a plasmonic slot mode and vice versa-and a plasmonic waveguide-for efficient high-speed modulation. The individual devices achieve data rates of 200\u00a0Gbit\/s with a symbol rate of 100\u00a0GBd.<\/span><\/div>\n
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Electrical and optical crosstalk between neighboring modulators were found to have no significant influence on the data modulation experiment. The modulator array has been tested in a 100\u00a0GBd experiment with signals at a single wavelength (mimicking a space division multiplexing scheme) and at different wavelengths (mimicking a wavelength division multiplexing experiment).<\/span><\/div>\n<\/blockquote>\n
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\"Ultra-Compact<\/p>\n

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Ultra-Compact Terabit Plasmonic Modulator Array<\/h3>\n<\/div>\n
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Fig. 2.<\/b><\/p>\n

Plasmonic phase modulator concept for a single device. (a) 3-dimensional rendering of the plasmonic phase modulator consisting of high-index silicon grating couplers (dark blue), a gold plasmonic slot waveguide (gold) and the cores of an optical fiber array (grey). The inset shows the facet of the fiber array. Neighboring cores with a 12 \u00b5m pitch were used to couple light into and out of the modulator. (b) Cross-section along the device showing the grating coupler geometry and schematic of the vertically incident fiber mode that is converted to a horizontally propagating plasmonic mode. (c) Cross-section across the plasmonic slot waveguide which is filled by a nonlinear organic electro-optic material (purple). In this configuration, light and electrical signal are both confined to the plasmonic slot leading to strong field enhancement, high field overlap and therefore strongest light-matter interaction.<\/p>\n

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