GaN-based series hybrid LED array : a dual-function light source with illumination and high-speed visible light communication capabilities
Xie, Enyuan and Cheng, Chen and Ouyang, Chengsui and Hill, Jordan and McKendry, Jonathan J.D. and Zhang, Yanchao and Gu, Erdan and Herrnsdorf, Johannes and Haas, Harald and Dawson, Martin D. (2024) GaN-based series hybrid LED array : a dual-function light source with illumination and high-speed visible light communication capabilities. Journal of Lightwave Technology, 42 (1). pp. 243-250. ISSN 0733-8724 (https://doi.org/10.1109/JLT.2023.3303779)
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Abstract
We propose and demonstrate a GaN-based series-driven hybrid light emitting diode (SH-LED) device in which broad-area and micro-LED components are interconnected for simultaneous illumination and high-speed visible light communication (VLC) applications. Through theoretical analysis based on an equivalent electrical circuit model and characterization from a fabricated exemplar device with blue emission, it is shown that SH-LEDs combine the advantages of broad-area and micro-LED components by offering high direct-current (DC) optical power output and a fast frequency response. The application of this device to VLC is demonstrated through both the point-to-point and 9 divergence-angle coverage systems at 3 m transmission distance adopting a DC-biased optical-orthogonal frequency-division multiplexing modulation scheme. Compared with a point-to-point system using a single micro-LED, that our initial demonstrator SH-LED achieves the same data transmission rate of 3.39 Gbps at forward error correction (FEC) floor of 3.8; 10-3, but the received DC optical power is improved by over 3 times. For the area coverage system, up to 1.56 Gbps data transmission rates at a FEC floor of 3.8 10-3 are accomplished by using this device, associated with over 4 times higher received DC optical power compared with that using a single micro-LED.
ORCID iDs
Xie, Enyuan ORCID: https://orcid.org/0000-0001-7776-8091, Cheng, Chen, Ouyang, Chengsui, Hill, Jordan, McKendry, Jonathan J.D. ORCID: https://orcid.org/0000-0002-6379-3955, Zhang, Yanchao, Gu, Erdan ORCID: https://orcid.org/0000-0002-7607-9902, Herrnsdorf, Johannes ORCID: https://orcid.org/0000-0002-3856-5782, Haas, Harald and Dawson, Martin D. ORCID: https://orcid.org/0000-0002-6639-2989;-
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Item type: Article ID code: 87150 Dates: DateEvent1 January 2024Published5 August 2023Accepted7 May 2023SubmittedNotes: Copyright © 2023 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. Subjects: Science > Physics > Optics. Light
Technology > Electrical engineering. Electronics Nuclear engineeringDepartment: Faculty of Science > Physics > Institute of Photonics
Faculty of Science > Physics
Technology and Innovation Centre > Photonics
Faculty of Engineering > Electronic and Electrical EngineeringDepositing user: Pure Administrator Date deposited: 02 Nov 2023 16:29 Last modified: 11 Nov 2024 13:55 URI: https://strathprints.strath.ac.uk/id/eprint/87150