3.2 Gigabit-per-second Visible Light Communication Link with InGaN/GaN MQW Micro-photodetector
Holguin Lerma, Jorge Alberto
Al-Saggaf, Abeer A.
Ng, Tien Khee
Ooi, Boon S.
KAUST DepartmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Electrical Engineering Program
Physical Sciences and Engineering (PSE) Division
Materials Science and Engineering Program
KAUST Solar Center (KSC)
King Abdullah University of Science and Technology (KAUST), Computer, Electrical, and Mathematical Sciences and Engineering, Thuwal 23955-6900, Saudi Arabia
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AbstractThis 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.
CitationHo K-T, Chen R, Liu G, Shen C, Holguin-Lerma J, et al. (2018) 3.2 Gigabit-per-second Visible Light Communication Link with InGaN/GaN MQW Micro-photodetector. Optics Express 26: 3037. Available: http://dx.doi.org/10.1364/oe.26.003037.
SponsorsThe authors gratefully acknowledge the financial support from King Abdulaziz City for Science and Technology (KACST), Grant No. KACST TIC R2-FP- 008, King Abdullah University of Science and Technology (KAUST) baseline funding, BAS/1/1614-01-01 and BAS/1/1657-01-01, and KAUST-KFUPM Special Initiative, Grant No. REP/1/2878.
PublisherThe Optical Society