Open AccessHigh-bandwidth InGaN/GaN semipolar micro-LED acting as a fast photodetector for visible light communications
Author(s) -
Yun-Han Chang,
Tzu-Chien Hsu,
Fang-Jyun Liou,
ChiWai Chow,
Ling Yang,
Hao−Chung Kuo,
ChienHung Yeh,
Po-Hui Yang
Publication year - 2021
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.439990
Subject(s) - visible light communication , megabit , light emitting diode , optoelectronics , photodiode , photodetector , computer science , data transmission , keying , optical wireless , bandwidth (computing) , wireless , transmission (telecommunications) , materials science , optics , telecommunications , physics , computer hardware
We propose and demonstrate a green semipolar (20-21) micro-light emitting diode (LED) acting as a high speed visible light communication (VLC) photodiode (PD). The micro-LED PD has the optical-to-electrical (OE) response of 228 MHz. A record data rate of 540 Mbit/s in on-off-keying (OOK) format with free-space transmission distance of 1.1 m was achieved, fulfilling the pre-forward error correction (FEC) limit. Many transmitters (Txs) and receivers (Rxs) is required to support the high density pico/femto-cells in future wireless networks, as well as the Internet-of-Things (IOT) networks. The proposed work could allow the realization of a low-cost, small-footprint and a high level of integration of VLC Txs and Rxs on the same platform.