High-Speed GaN-Based Superluminescent Diode for 4.57 Gbps Visible Light Communication

Dong Li; Chicheng Ma; Junfei Wang; Fangchen Hu; Yuqi Hou; Shanshan Wang; Junhui Hu; Shulan Yi; Yingnan Ma; Jianyang Shi; Junwen Zhang; Ziwei Li; Nan Chi; Liang Xia; Chao Shen

doi:10.3390/cryst12020191

Crystals (Jan 2022)

High-Speed GaN-Based Superluminescent Diode for 4.57 Gbps Visible Light Communication

Dong Li,
Chicheng Ma,
Junfei Wang,
Fangchen Hu,
Yuqi Hou,
Shanshan Wang,
Junhui Hu,
Shulan Yi,
Yingnan Ma,
Jianyang Shi,
Junwen Zhang,
Ziwei Li,
Nan Chi,
Liang Xia,
Chao Shen

Affiliations

Dong Li: Key Laboratory for Information Science of Electromagnetic Waves (MoE), School of Information Science and Technology, Fudan University, Shanghai 200438, China
Chicheng Ma: Key Laboratory for Information Science of Electromagnetic Waves (MoE), School of Information Science and Technology, Fudan University, Shanghai 200438, China
Junfei Wang: Key Laboratory for Information Science of Electromagnetic Waves (MoE), School of Information Science and Technology, Fudan University, Shanghai 200438, China
Fangchen Hu: Key Laboratory for Information Science of Electromagnetic Waves (MoE), School of Information Science and Technology, Fudan University, Shanghai 200438, China
Yuqi Hou: Key Laboratory for Information Science of Electromagnetic Waves (MoE), School of Information Science and Technology, Fudan University, Shanghai 200438, China
Shanshan Wang: Key Laboratory for Information Science of Electromagnetic Waves (MoE), School of Information Science and Technology, Fudan University, Shanghai 200438, China
Junhui Hu: Key Laboratory for Information Science of Electromagnetic Waves (MoE), School of Information Science and Technology, Fudan University, Shanghai 200438, China
Shulan Yi: Key Laboratory for Information Science of Electromagnetic Waves (MoE), School of Information Science and Technology, Fudan University, Shanghai 200438, China
Yingnan Ma: Key Laboratory for Information Science of Electromagnetic Waves (MoE), School of Information Science and Technology, Fudan University, Shanghai 200438, China
Jianyang Shi: Key Laboratory for Information Science of Electromagnetic Waves (MoE), School of Information Science and Technology, Fudan University, Shanghai 200438, China
Junwen Zhang: Key Laboratory for Information Science of Electromagnetic Waves (MoE), School of Information Science and Technology, Fudan University, Shanghai 200438, China
Ziwei Li: Key Laboratory for Information Science of Electromagnetic Waves (MoE), School of Information Science and Technology, Fudan University, Shanghai 200438, China
Nan Chi: Key Laboratory for Information Science of Electromagnetic Waves (MoE), School of Information Science and Technology, Fudan University, Shanghai 200438, China
Liang Xia: China Mobile Research Institute, Beijing 100053, China
Chao Shen: Key Laboratory for Information Science of Electromagnetic Waves (MoE), School of Information Science and Technology, Fudan University, Shanghai 200438, China

DOI: https://doi.org/10.3390/cryst12020191
Journal volume & issue: Vol. 12, no. 2
p. 191

Abstract

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Visible light communication (VLC) is a promising technology for next-generation high-speed optical wireless data links. Among various transmitters, GaN-based superluminescent diodes (SLDs) show interesting characteristics, including a large modulation bandwidth, droop free and low speckle noise, which makes them attractive for VLC applications. In this work, we design and fabricate a blue-emitting SLD utilizing tilted facet configuration. Using SLD as the light source, a VLC system is experimentally demonstrated. A record data rate of 4.57 gigabit per second (Gbps) is achieved with adaptive bit-loading discrete multiple tone (DMT) modulation, while the highest modulation format reaches 256 quadrature amplitude modulation (QAM). The corresponding bit error rate (BER) is ~3.5 × 10−3, which is below the forward error correction (FEC) threshold of 3.8 × 10−3.

Published in Crystals

ISSN: 2073-4352 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Chemistry: Crystallography
Website: http://www.mdpi.com/journal/crystals/

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