KEEQuant has launched commercial-grade chip-scale QKD technology aimed at making quantum key distribution practical for deployment in real-world fiber networks used by telecom operators, data center providers, and critical infrastructure organizations.

The core engineering milestone is photonic integration: KEEQuant says it has integrated and validated the major optical building blocks required for QKD on photonic chips. Using commercial photonic integrated circuits (PICs), the company brought transmitter and receiver lasers, modulation, receiver optics, and detection to the chip scale, replacing larger optical assemblies with a compact photonic architecture.

For operators, the promise of chip-scale QKD is less about novelty and more about manufacturability. Moving QKD optics onto PICs can enable repeatable packaging and more consistent system-level integration, which is typically where lab-grade photonics runs into trouble when you try to deploy it at scale across racks, cages, or metro fiber spans. But the real test will be how these systems behave in day-to-day network operations, where reliability, maintainability, and integration with existing encryption workflows matter as much as the physics.

“For years, QKD has been seen as strategically important, but too complex and too costly for broad deployment,” said Imran Khan, Managing Director at KEEQuant. “Bringing QKD to the chip scale changes that. It gives quantum-safe key exchange the economics and practicality it needs to move into real-world networks.”

KEEQuant said it expects to begin shipments to first customers later this year.

KEEQuant also noted that this work received funding through the SEQRET project under the European Union’s Digital Europe Programme, within the framework of EuroQCI, under call DIGITAL-2021-QCI-01-INDUSTRIAL (Project ID: 101091591).

Source: KEEQuant