3M has become the latest member of a cross-industry coalition working to standardize expanded beam optical connectivity for AI data centers. The group, which already includes AMD, Meta, Oracle, Cisco, and Arista, aims to accelerate AI infrastructure buildouts by reducing costs and preventing lock-in to proprietary systems.
Why the Coalition Formed
The rapid expansion of AI workloads has pushed data center interconnects to their limits. Traditional copper cabling and older optical solutions struggle with the bandwidth and distance requirements of large-scale GPU clusters. Expanded beam optics offer a more robust physical layer that can handle higher data rates over longer distances with less signal loss. But without common standards, data center operators risk getting stuck with incompatible gear from different vendors.
The Members and Their Pull
3M brings decades of experience in fiber optic components and connectivity hardware. Its inclusion gives the coalition deeper expertise in the physical layer of optical networks. Alongside chipmaker AMD, cloud giant Meta, enterprise IT powerhouse Oracle, and networking leaders Cisco and Arista, the group represents a wide slice of the AI supply chain – from silicon to servers to switches.
What Standardization Could Unlock
A unified expanded beam connector standard would let data center operators mix and match transceivers, cables, and patch panels from different manufacturers without redesigning their entire infrastructure. That competition typically drives down component costs and speeds up deployment timelines. For AI training clusters that can consume tens of thousands of optical links, even small per-connection savings add up. More importantly, avoiding vendor lock-in gives operators flexibility to upgrade individual parts as new generations of optics emerge.
AI data centers are already among the most power-hungry facilities on the planet. Efficient optical interconnects can reduce the energy needed to move data between GPUs and storage. Standardized expanded beam connectors also promise easier field termination and maintenance, which cuts down on downtime during cluster expansions. The coalition's work fits into a broader push by the industry to move AI networking beyond traditional Ethernet and InfiniBand toward purpose-built optical fabrics.
The coalition has not announced a specific timeline for releasing a draft standard, but members say they expect to have a specification ready for industry review within the next year. Until then, data center operators will continue to rely on a patchwork of proprietary optical solutions.
