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Quantum-Safe Optical Networks Scale
Coverage from Intelligent CIO North America, Nokia, and others
Telecom and networking companies are demonstrating quantum-safe optical transport for sensitive data moving between distributed data centers and across long-haul networks.
Colt and Ciena reported an 800Gbps protected transmission over 6,900 kilometers between New York and London, while Nokia and KDDI demonstrated encrypted optical transport for AI workloads in Japan. The activity indicates that quantum-resistant protection is being integrated into high-capacity network infrastructure, though the evidence concerns demonstrations rather than broad production deployment.
The story is now anchored by a specific transatlantic implementation result: Colt and Ciena disclosed an 800Gbps quantum-safe transmission over 6,900 kilometers, while the Japan side is framed more clearly as an AI data-center demonstration. The added detail shifts the emphasis from general proof-of-concept claims to concrete technical validation, though still not commercial deployment.