CUbIQ Technologies and Coherent Corp. demonstrated a scalable, physical-layer security solution for AI data centers. Their demo used a CV‑QKD transceiver in a QSFP‑28 module running alongside Coherent’s 200G FR4 optics, delivering quantum-key distribution without hardware changes. The joint effort highlights a shift toward security for AI infrastructures.
The system ran on an NVIDIA DGX Spark via its ConnectX‑7 interface, needing no host or stack modifications. Engineers plugged the QSFP‑28 module into ports, and the CV‑QKD link operated transparently with the 200G FR4 traffic. This plug-and-play design cuts complexity for workloads. Operators can future-proof networks without expensive upgrades.
Embedding quantum key distribution at the physical layer protects AI data from eavesdropping as models become distributed. The demo shows scalable security can run alongside high-speed 200G optics, opening the door for hyperscale AI training and edge. This approach ensures confidentiality for training data, inference results, and model updates across compute environments.
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