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1.5 Gbit/s multi-channel visible light communications using CMOS-controlled GaN-based LEDs

Zhang, Shuailong and Watson, Scott and McKendry, Jonathan and Massoubre, David and Cogman, Andrew and Gu, Erdan and Henderson, R.K. and Kelly, A.E. and Dawson, Martin (2013) 1.5 Gbit/s multi-channel visible light communications using CMOS-controlled GaN-based LEDs. Journal of Lightwave Technology, 31 (8). pp. 1211-1216. ISSN 0733-8724

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Abstract

An on-chip multi-channel visible light communication (VLC) system is realized through a blue (450 nm) GaN-based micron-size light-emitting diode (μLED) array integrated with complementary metal-oxide-semiconductor (CMOS) electronics. When driven by a custom-made CMOS driving board with 16 independent parallel data input ports, this μLED array device is computer controllable via a standard USB interface and is capable of delivering high speed parallel data streams for VLC. A total maximum error-free data transmission rate of 1.5 Gbit/s is achieved over free space by modulating four μLED pixels simultaneously using an on-off key non-return to zero modulation scheme. Electrical and optical crosstalk of the system has also been investigated in detail and the further optimization of CMOS design to minimize the crosstalk is proposed.

Item type: Article
ID code: 43161
Keywords: III-V semiconductors, gallium compounds, light emitting diodes, optical communication, CMOS electronics, Physics, Optics. Light, Atomic and Molecular Physics, and Optics
Subjects: Science > Physics
Science > Physics > Optics. Light
Department: Faculty of Science > Physics
Faculty of Science > Physics > Institute of Photonics
Technology and Innovation Centre > Photonics
Depositing user: Pure Administrator
Date deposited: 11 Mar 2013 16:14
Last modified: 15 Feb 2019 03:31
URI: https://strathprints.strath.ac.uk/id/eprint/43161
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