A review of gallium nitride LEDs for multi-gigabit-per-second visible light data communications

Sujan Rajbhandari; J. J. D. McKendry; J. Herrnsdorf; H. Chun; G. Faulkner; H. Haas; I. M. Watson; D. O'Brien; M. D. Dawson

doi:10.1088/1361-6641/32/2/023001

A review of gallium nitride LEDs for multi-gigabit-per-second visible light data communications

Sujan Rajbhandari, J. J. D. McKendry, J. Herrnsdorf, H. Chun, G. Faulkner, H. Haas, I. M. Watson, D. O'Brien, M. D. Dawson

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Abstract

The field of visible light communications (VLC) has gained significant interest over the last decade, in both fibre and free-space embodiments. In fibre systems, the availability of low cost polymer optical fibre (POF) that is compatible with visible data communications has been a key enabler. In free-space applications, the availability of hundreds of THz of the unregulated spectrum makes VLC attractive for wireless communications. This paper provides an overview of the recent developments in VLC systems based on gallium nitride (GaN) light-emitting diodes (LEDs), covering aspects from sources to systems. The state-of-the-art technology enabling bandwidth of GaN LEDs in the range of >400 MHz is explored. Furthermore, advances in key technologies, including advanced modulation, equalisation, and multiplexing that have enabled free-space VLC data rates beyond 10 Gb s−1 are also outlined.

Original language	English
Article number	023001
Journal	Semiconductor Science and Technology
Volume	32
Issue number	2
DOIs	https://doi.org/10.1088/1361-6641/32/2/023001
Publication status	Published - 4 Jan 2017

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title = "A review of gallium nitride LEDs for multi-gigabit-per-second visible light data communications",

abstract = "The field of visible light communications (VLC) has gained significant interest over the last decade, in both fibre and free-space embodiments. In fibre systems, the availability of low cost polymer optical fibre (POF) that is compatible with visible data communications has been a key enabler. In free-space applications, the availability of hundreds of THz of the unregulated spectrum makes VLC attractive for wireless communications. This paper provides an overview of the recent developments in VLC systems based on gallium nitride (GaN) light-emitting diodes (LEDs), covering aspects from sources to systems. The state-of-the-art technology enabling bandwidth of GaN LEDs in the range of >400 MHz is explored. Furthermore, advances in key technologies, including advanced modulation, equalisation, and multiplexing that have enabled free-space VLC data rates beyond 10 Gb s−1 are also outlined.",

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AU - Rajbhandari, Sujan

AU - McKendry, J. J. D.

AU - Herrnsdorf, J.

AU - Chun, H.

AU - Faulkner, G.

AU - Haas, H.

AU - Watson, I. M.

AU - O'Brien, D.

AU - Dawson, M. D.

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N2 - The field of visible light communications (VLC) has gained significant interest over the last decade, in both fibre and free-space embodiments. In fibre systems, the availability of low cost polymer optical fibre (POF) that is compatible with visible data communications has been a key enabler. In free-space applications, the availability of hundreds of THz of the unregulated spectrum makes VLC attractive for wireless communications. This paper provides an overview of the recent developments in VLC systems based on gallium nitride (GaN) light-emitting diodes (LEDs), covering aspects from sources to systems. The state-of-the-art technology enabling bandwidth of GaN LEDs in the range of >400 MHz is explored. Furthermore, advances in key technologies, including advanced modulation, equalisation, and multiplexing that have enabled free-space VLC data rates beyond 10 Gb s−1 are also outlined.

AB - The field of visible light communications (VLC) has gained significant interest over the last decade, in both fibre and free-space embodiments. In fibre systems, the availability of low cost polymer optical fibre (POF) that is compatible with visible data communications has been a key enabler. In free-space applications, the availability of hundreds of THz of the unregulated spectrum makes VLC attractive for wireless communications. This paper provides an overview of the recent developments in VLC systems based on gallium nitride (GaN) light-emitting diodes (LEDs), covering aspects from sources to systems. The state-of-the-art technology enabling bandwidth of GaN LEDs in the range of >400 MHz is explored. Furthermore, advances in key technologies, including advanced modulation, equalisation, and multiplexing that have enabled free-space VLC data rates beyond 10 Gb s−1 are also outlined.

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DO - 10.1088/1361-6641/32/2/023001

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A review of gallium nitride LEDs for multi-gigabit-per-second visible light data communications

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