Programmable Chip That Can Slow Light on Command (scitechdaily.com)

Researchers from Seoul National University and the University of Seoul have developed a groundbreaking programmable photonic integrated circuit capable of slowing light on demand, significantly advancing optical computing technology. This innovative approach addresses historical challenges in optical communications, where the natural speed of light complicates tasks such as buffering and synchronizing signals. Their design leverages coupled-resonator-induced transparency (CRIT) to allow real-time adjustments in the speed and shape of optical signals, enhancing flexibility in data processing without essential hardware changes. This technology is particularly significant for the AI and machine learning communities as the rapid growth of generative AI has increased the demand for efficient computing solutions. By enabling the integration of multiple signal processing functions onto a single chip, researchers anticipate reductions in energy consumption and costs for data centers and AI servers. The approach not only paves the way for next-generation optical communication systems but could also support advancements in fields requiring rapid information processing, such as autonomous driving and quantum technologies.