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Electrically pumped silicon waveguide light sources

Jayatilleka, H; Nasrollahy-Shiraz, A; Kenyon, AJ; (2011) Electrically pumped silicon waveguide light sources. Optics Express , 19 (24) 24569 - 24576. 10.1364/OE.19.024569. Green open access

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Abstract

We report simulations of electrically pumped waveguide emitters in which the emissive layer contains silicon nanoclusters and erbium ions. Plasmonic coupling to metallic or semi-metallic overlayers provides enhancement of the radiative rate of erbium ions, enabling high quantum efficiency emission. Using 2D and 3D finite difference time domain (FDTD) simulations we show that up to 75% of the light emitted from the active layer can be coupled into a nanowire silicon rib waveguide. Our results suggest that such devices, which can readily be fabricated using CMOS processing techniques, pave the way for viable waveguide optical sources to be realized in silicon photonics.

Type: Article
Title: Electrically pumped silicon waveguide light sources
Open access status: An open access version is available from UCL Discovery
DOI: 10.1364/OE.19.024569
Publisher version: http://dx.doi.org/10.1364/OE.19.024569
Language: English
Additional information: © 2011 Optical Society of America
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: http://discovery.ucl.ac.uk/id/eprint/1333806
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