World’s First UCIe Optical Chiplet

The first optical I/O chiplet with UCIe interface delivers 8 Tbps bandwidth to reduce latency, lower power use, and scale AI with chiplet interoperability.

Ayar Labs has introduced the industry’s first Universal Chiplet Interconnect Express (UCIe) optical I/O chiplet. Designed to eliminate data bottlenecks, reduce latency and power consumption, and integrate easily with chiplet-based systems, this new solution marks a major step toward scalable AI infrastructure.

The chiplet—TeraPHY—delivers 8 Tbps of bandwidth and is powered by Ayar Labs’ 16-wavelength SuperNova light source. By incorporating the UCIe interface, it enables interoperability across chiplets from different vendors, creating a more flexible and cost-efficient ecosystem for optical interconnects in AI systems.

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Ayar Labs has combined silicon photonics with CMOS processes to bring optical interconnects into a chiplet form factor. This enables GPUs and accelerators to function as a unified system across distances ranging from millimeters to kilometers—essentially forming a single large GPU.

“Optical interconnects are needed to solve power density challenges in scale-up AI fabrics,” said Mark Wade, CEO and co-founder of Ayar Labs. “We recognized early on the potential for co-packaged optics, which positioned us to drive adoption of optical solutions in AI applications. As we continue to push the boundaries of optical technologies, we’re also bringing together the supply chain, manufacturing, and testing and validation processes needed for customers to deploy these solutions at scale.”

Advanced Micro Devices (AMD) “As the leader in chiplet technology, we are proud to continue our long history of supporting industry standards that drive innovation forward and create solutions to meet our customers’ and the industry’s needs,” said Mark Papermaster, Chief Technology Officer and Executive Vice President, AMD. “The robust, open and vendor neutral chiplet ecosystem provided by UCIe is critical to meeting the challenge of scaling networking solutions to deliver on the full potential of AI. We’re excited that Ayar Labs is one of the first deployments that leverages the UCIe platform to its full extent.”

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