Laser-based visible laser communication (VLC) is an emerging optical wireless communication technology for future 6G wireless network. In this work, we present the design, fabrication, and characterization of high-speed InGaN/GaN multiple quantum-well (MQW) laser diodes on c-plane GaN substrate. The peak emission wavelength is ~ 451 nm. A modulation bandwidth of 5 GHz has been achieved. Using the laser diode as transmitter, a data transmission rate beyond 15 Gbps has been measured in the VLC link using discrete multitone (DMT) modulation.
Optoelectronics is one of the core courses for first year graduate students major in communication engineering and electronic and information engineering at Fudan University. The conventional approach to teach students from a diverse academic background is challenging. In 2022, we introduce flipped classroom approach in optoelectronic course. The course is organized under 15 topics in optoelectronics. Students will take the lead in presentation, topic discussion and case study. We find that by introducing the flipped classroom approach, students are able to master the course materials with better efficiency.
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