Abstract
This paper investigated the use of semipolar InGaN/GaN multiple quantum well based micro-photodetectors (μPDs) as the optical receiver for visible light communication (VLC). The fabricated semipolar μPDs exhibited a low dark current of 1.6 pA at −10 V, a responsivity of 0.191 A W−1, and a −3 dB modulation bandwidth of 347 MHz. A high data rate of up to 1.55 Gbit s−1 was achievable by utilizing the extended bandwidth of more than −10 dB, and based on a straight-forward non-return-to-zero on–off keying modulation scheme. This development demonstrated the feasibility of wavelength-selective detection scheme using semipolar μPD for high-data-capacity VLC systems.
Highlights
This paper investigated the use of semipolar InGaN/GaN multiple quantum well based micro-photodetectors as the optical receiver for visible light communication (VLC)
A high data rate of up to 1.55 Gbit s−1 was achievable by utilizing the extended bandwidth of more than −10 dB, and based on a straight-forward non-return-to-zero on–off keying modulation scheme
This development demonstrated the feasibility of wavelength-selective detection scheme using semipolar μPD for high-data-capacity VLC systems
Summary
Chun Hong; Liu, Guangyu; Lee, Changmin; Alkhazragi, Omar; Wagstaff, Jonathan M.; Li, Kuang-Hui; Alhawaj, Fatimah; Ng, Tien Khee; Speck, James S.; Nakamura, Shuji; DenBaars, Steven P.; Ooi, Boon S. Chun Hong Kang1 , Guangyu Liu1 , Changmin Lee2 , Omar Alkhazragi1 , Jonathan M.
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