Semiconductor Today features "III-nitride microphotodetector for visible light communication"

"KAUST in Saudi Arabia claims a record 3.2 gigabit per second (Gbps) data-rate performance for visible light communications (VLC) at 405nm wavelength. The orthogonal-frequency division mulltiplex (OFDM) system used an indium gallium nitride multiple quantum well microphotodetector (μPD) receiver and laser diode source with quadrature amplitude modulation (QAM) coding."

"The researchers want to address the bandwidth and data security challenges for future high-speed mobile Internet, smart traffic, and Internet of Things (IoT). Bandgap limitations make the receiver portion of VLC systems particularly challenging."

"The researchers comment: “Our work features the record high data rate of VLC link using InGaN μPDs as receiver, which is the first demonstration of such system.”"

3.2 Gigabit-per-second Visible Light Communication Link with InGaN/GaN MQW Micro-photodetector

Kang-Ting Ho, Rui Chen, Guangyu Liu, Chao Shen, Jorge Holguin-Lerma, Abeer A. Al-Saggaf, Tien Khee Ng, Mohamed-Slim Alouini, Jr-Hau He, and Boon S. Ooi
Optics Express, 26(3), 3037-3045 (2018)

DOI: 10.1364/OE.26.003037

HDL: 10754/627043