Image Courtesy: Georgie Devlin
Scientists in China have developed a laser-powered photonic engine capable of transmitting data over 1.2 kilometers using white light, a breakthrough researchers say could help power future AI-enabled 6G communication networks.
The system, developed by researchers at South China University of Technology, uses a ceramic-based laser lighting material to transfer information at distances far beyond traditional visible light communication systems, which are typically limited to only a few meters. The findings provide direct experimental support for next-generation 6G technologies, according to a newly-published study.
Researchers say the photonic engine emits high-quality white light capable of carrying large amounts of data while remaining relatively simple and cost-effective to manufacture. The technology is designed to overcome some of the biggest infrastructure challenges facing 6G development, including the need for denser wireless networks, lower energy consumption, and scalable hardware suitable for mass production.
Unlike current 5G systems, which primarily focus on faster wireless speeds, future 6G networks are expected to integrate sensing, AI, and communications into a unified system. Scientists envision networks that can detect movement, analyze environments in real time, and support intelligent autonomous systems across cities, transportation networks, and industrial infrastructure.
The researchers also highlighted potential use cases beyond smartphones and consumer electronics. The laser-based communication system could eventually support drone logistics, low-altitude aircraft, and remote connectivity in difficult environments such as oceans, deserts, and mountainous regions where traditional infrastructure is harder to deploy.
Despite the breakthrough, the technology still faces limitations. The current photonic engine emits light primarily in the yellow spectrum and lacks strong red-light components, reducing its color rendering accuracy compared to natural sunlight. Data transfer speeds also remain significantly slower than fiber optic systems.
To improve performance, the research team plans to develop faster light-emitting materials and integrate the optical communication platform with radio-frequency systems. Researchers say combining both technologies could improve reliability during poor weather conditions while allowing AI systems to dynamically adjust optical power and transmission speeds in real time.
The project reflects the broader global race to define the next era of wireless connectivity. Governments and technology companies across China, the US, South Korea, and Europe are already investing heavily in early-stage 6G infrastructure research, despite 5G deployment still expanding worldwide.
