Open Access32 Gigabit-per-second Visible Light Communication Link with InGaN/GaN MQW Micro-photodetector
Author(s) -
KangTing Ho,
Rui Chen,
Guangyu Liu,
Chao Shen,
Jorge A. HolguínLerma,
Abeer Al-Saggaf,
Tien Khee Ng,
MohamedSlim Alouini,
JrHau He,
Boon S. Ooi
Publication year - 2018
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.003037
Subject(s) - visible light communication , photodetector , gigabit , responsivity , optoelectronics , optics , orthogonal frequency division multiplexing , quadrature amplitude modulation , materials science , bandwidth (computing) , modulation (music) , optical communication , wavelength division multiplexing , bit error rate , wavelength , physics , computer science , telecommunications , light emitting diode , channel (broadcasting) , acoustics
This paper presents the first demonstration of InGaN multiple quantum well (MQW) based micro-photodetectors (µPD) used as the optical receiver in orthogonal frequency-division multiplexing (OFDM) modulated visible communication system (VLC). The 80-µm diameter µPD exhibits a wavelength-selective responsivity in the near-UV to violet regime (374 nm - 408 nm) under a low reverse bias of -3 V. The modulation scheme of 16-quadrature amplitude modulation (16-QAM) OFDM enables the use of frequency response beyond -3 dB cutoff bandwidth of µPD. A record high data rate of 3.2 Gigabit per second (Gpbs) was achieved as a result, which provides the proof-of-concept verification of a viable high speed VLC link.
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