Russian and Chinese Scientists Make Discovery That Could Shape the Future
Scientists at the International Laboratory of Quantum Optoelectronics at HSE University – St. Petersburg and the Laser Institute of the Shandong Academy of Sciences in China have directly compared the speed of microdisk lasers powered optically and electrically. The findings could help optimize light sources in photonic chips for neural networks and data centers.
The age of artificial intelligence is rapidly approaching the physical limits of conventional computing. Conventional silicon chips driven by electrical signals overheat and consume enormous amounts of energy as they attempt to process the trillions of parameters in today's neural networks. Further increases in computing power will require fundamentally different computer architectures. Researchers in Russia and China are working on an answer. Scientists at HSE University – St. Petersburg and the Laser Institute of the Shandong Academy of Sciences have taken an important step toward photonic chips in which light takes over the role now played by electrons. The approach could do more than improve computing technology – it could fundamentally rethink how computers work.
The Science Behind the Discovery
The recent study centers on an engineering question: What is the more effective way to pump a microdisk laser for a photonic chip, optically or electrically? The experiment produced a striking result: there was virtually no difference between the two pumping methods, with modulation speeds reaching 4.15 GHz. The significance of that number may not be immediately obvious, but for developers of photonic integrated circuits, it removes a potentially important constraint. Unlike electrical signals, light pulses do not generate parasitic heat and can carry enormous amounts of data with little latency. That could eventually make photonic AI accelerators practical, enabling future data centers to operate orders of magnitude faster while addressing one of the industry's biggest challenges – energy consumption.
The Evolution of Photonics: A Five-Year Journey
The latest advance follows years of sustained research in Russia. A look back at recent developments shows how quickly the field has progressed. In 2021, Rosatom, the Russian Academy of Sciences and Lomonosov Moscow State University laid the conceptual groundwork for neuromorphic systems that mimic biological neural networks. In 2022, the National Research University of Electronic Technology (MIET) developed basic on-chip photonic components, and in 2023 researchers mastered silicon nitride-based circuit technologies.
In 2024, Samara University introduced a photonic computing system capable of processing video streams hundreds of times faster than conventional counterparts. In 2025 and 2026, the focus shifted toward international collaboration and testing the performance limits of microlasers. Russia is now steadily building its own research and technology base in optical computing.
The Geopolitics of Light and Where It Could Lead
For now, this is fundamental research, not a mass-produced technology. Still, the potential implications for Russia are strategic. Developing domestic expertise in microelectronics and photonics is a matter of technological sovereignty. Over time, Russian technologies could form the basis of next-generation AI servers, specialized accelerators and scientific supercomputers.
The Russia-China partnership is a particular focus. Amid the global technology race, Asian-Eurasian cooperation in quantum optoelectronics is emerging as an alternative center of innovation. Joint laboratories can combine Russia's expertise in fundamental physics with China's capacity to scale manufacturing, with the aim of developing products for the global market.
Photonic chips are not simply about replacing copper with optics. They represent a change in the computing paradigm itself. The research by HSE University and its Shandong partners showed that light is ready to serve as a foundation for next-generation neural networks. Commercial exports of complete photonic data centers are still years away and would require enormous engineering and infrastructure investment. But the foundations are being laid today for a future in which artificial intelligence could compute at the speed of light. In that effort, Russia is positioning itself not as a follower, but as one of the architects of a new computing era.
