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

R. X. G. Ferreira; E. Xie; J. J. D. McKendry; Sujan Rajbhandari; H. Chun; G. Faulkner; S. Watson; A. E. Kelly; E. Gu; R. V. Penty; I. H. White; D. C. O’Brien; M. D. Dawson

doi:10.1109/LPT.2016.2581318

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

R. X. G. Ferreira, E. Xie, J. J. D. McKendry, Sujan Rajbhandari, H. Chun, G. Faulkner, S. Watson, A. E. Kelly, E. Gu, R. V. Penty, I. H. White, D. C. O’Brien, M. D. Dawson

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Abstract

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.

Original language	English
Pages (from-to)	2023-2026
Journal	IEEE Photonics Technology Letters
Volume	28
Issue number	19
Early online date	15 Jun 2016
DOIs	https://doi.org/10.1109/LPT.2016.2581318
Publication status	Published - 1 Oct 2016

Bibliographical note

This work is licensed under a Creative Commons Attribution 3.0 License. For more information, see http://creativecommons.org/licenses/by/3.0/

Keywords

Light emitting diodes
Bandwidth
Modulation
Current density
OFDM
Data communication
Bit error rate
pulse amplitude modulation
amplitude shift keying
free-space optical communication
gallium compounds
III-V semiconductors
integrated optoelectronics
light emitting diodes
OFDM modulation
optical communication equipment
PAM
micro light-emitting diodes
GaN
optical communication
visible-light communication

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10.1109/LPT.2016.2581318

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High Bandwidth GaN-Based Micro-LEDs for Multi-Gb/s Visible Light Communications. / Ferreira, R. X. G.; Xie, E.; McKendry, J. J. D.; Rajbhandari, Sujan; Chun, H.; Faulkner, G.; Watson, S.; Kelly, A. E.; Gu, E.; Penty, R. V.; White, I. H.; O’Brien, D. C.; Dawson, M. D.

In: IEEE Photonics Technology Letters, Vol. 28, No. 19, 01.10.2016, p. 2023-2026.

Research output: Contribution to journal › Article › peer-review

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abstract = "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. ",

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AB - 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.

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

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