CUED Publications database

High Bandwidth GaN-Based Micro-LEDs for Multi-Gb/s Visible Light Communications

Ferreira, RXG and Xie, E and McKendry, JJD and Rajbhandari, S and Chun, H and Faulkner, G and Watson, S and Kelly, AE and Gu, E and Penty, RV and White, IH and O'Brien, DC and Dawson, MD (2016) High Bandwidth GaN-Based Micro-LEDs for Multi-Gb/s Visible Light Communications. IEEE Photonics Technology Letters, 28. pp. 2023-2026. ISSN 1041-1135

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Abstract

© 2016 IEEE. Gallium-nitride (GaN)-based light-emitting diodes (LEDs) are highly efficient sources for general purpose illumination. Visible light communications (VLC) uses these sources to supplement existing wireless communications by offering a large, licence-free region of optical spectrum. Here, we report on progress in the development of micro-scale GaN LEDs (micro-LEDs), optimized for VLC. These blue-emitting micro-LEDs are shown to have very high electrical-to-optical modulation bandwidths, exceeding 800 MHz. The data transmission capabilities of the micro-LEDs are illustrated by demonstrations using ON-OFF-keying, pulse-amplitude modulation, and orthogonal frequency division multiplexing modulation schemes to transmit data over free space at the rates of 1.7, 3.4, and 5 Gb/s, respectively.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div B > Photonics
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:02
Last Modified: 23 Nov 2017 03:31
DOI: