Visible light communications

Laser lighting and its application in visible light communications

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B9 L2 R2322

This talk provides an overview of the latest laser-based lighting and Gbit/s VLC and underwater communications. Recent progress of visible wavelength high-speed transmitters and receivers will also be discussed.

Visible Light Communications in the UK: Recent Progress and Future Outlook

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B2 L5 R5220

Abstract Visible light communications (VLC) is a hot topic in internet access networks, developing rapidly over the last decade. It has become one of the main candidate technologies to complement existing radio infrastructure in 5G and beyond technologies due to its inherent advantages such as high bandwidth and room-to-room security. In this talk, I will discuss several of the key developments that have occurred within the context of the UK research community, with particular focus on polymer photoactive components based on research that has occurred through my time at University College

Fabrication and Characterization of GaN-Based Superluminescent Diode for Solid-State Lighting and Visible Light Communication

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KAUST

This dissertation is devoted to the fabrication and electrical and optical characterization of a new class of III-nitride light-emitter known as superluminescent diode (SLD). SLD works in an amplified spontaneous emission (ASE) regime, and it combines several advantages from both LD and LED, such as droop-free, speckle-free, low-spatial coherence, broader emission, high-optical power, and directional beam. Here, SLDs were fabricated by a focused ion beam by tilting the front facet of the waveguide to suppress the lasing mode. They showed a high-power of 474 mW on c-plane GaN-substrate with a large spectral bandwidth of 6.5 nm at an optical power of 105 mW. To generate SLD-based white light, a YAG-phosphor-plate was integrated, and a CRI of 85.1 and CCT of 3392 K were measured. For the VLC link, SLD showed record high-data rates of 1.45 Gbps and 3.4 Gbps by OOK and DMT modulation schemes, respectively. Additionally, a widely single- and dual-wavelength tunability were designed using SLD-based external cavity (SLD-EC) configuration for a tunable blue laser source.

ACS C&EN, Phys.org, IET E&T, Laser Focus World, OPN, Futurism, AlJazeera, EE Times, Lux Review, and others features "Bandwidth record for data communication using laser-based visible light"

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"In this bandwidth hungry era, there will be a continuous push by consumers for VLC systems with higher bitrates," Ooi said. "We believe that white light generated by semiconductor lasers will one day replace the LED white light bulb for energy-efficient lighting."

Chao Shen​ wins the 2nd place in 2016 IEEE Photonics Society​ Student and Young Professional Poster Competition

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Congratulations! The poster competition is part of IPC 2016 (IEEE Photonics Conference).

KAUST Ph.D student, Jorge A. Holguin-Lerma, awarded 2019 SPIE Optics and Photonics Education Scholarship

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SPIE, the international society for optics and photonics, recently awarded KAUST Ph.D. student Jorge Holguín-Lerma a 2019 Optics and Photonics Education Scholarship for his potential research contributions to optics, photonics or other related fields. Holguín-Lerma joined KAUST in August 2016 and is a member of Professor Boon S. Ooi's Photonics Laboratory.

José Martín Farfán Esponda

Visiting Student, Photonics Laboratory
José Martín Farfán Esponda was a visiting student at the Photonics Laboratory in the Division of Computer, Electrical and Mathematical Science and Engineering (CEMSE) for the Photonics Summer Camp program. He obtained his Bachelor’s degree in Physics Engineering at Monterrey Institute of Technology in Mexico, in 2019. Research Interests José's research interests included ​Underwater Wireless Optical Communications and Visible Light Communications. Education Profile Bachelor’s degree in Physics Engineering, Monterrey Institute of Technology, Mexico (2019). Professional Memberships ​Research

Haiyan Xu

Visiting Student, Photonics Laboratory
Haiyan Xu was a summer intern in Photonics Workshop in 2017 at KAUST. She came from Nanjing in China. She holds a Bachelor’s degree in Applied Chemistry (Nanjing Tech University, 2015) and she obtained her Master’s degree in Chemical Engineering in 2018 (Nanjing University). Research Interests Haiyan research interests included Visible Light Communications, water splitting, and Li-Fi. Awards and Distinctions First-class Prize in Academic Scholarship (NJU, 2015). Second-class Prize in Academic Scholarship (NJU, 2016). 2015 Outstanding Graduate (200/6000+, NJTECH, 2015). National Encouragement

Abdullah A. Alatawi

Abdullah Alatawi is a Ph.D. student at Photonics Laboratory at King Abdullah University of Science and Technology (KAUST). His research interests include the study of semiconductor lasers, LEDs, and SLDs for applications in energy-efficient lighting and visible light communications. He received his master of science in optical nanotechnology engineering from the University of Kassel in Germany (2014). The topic of his thesis covers the investigation and improvement of VCSEL devices. He received his B.SC in Aerospace Engineering from King Fahad University of Petroleum and Minerals (KFUPM) in