Eindhoven, Netherlands, September 29, 2025 -- CUbIQ Technologies, a Dutch pioneer in quantum communication, today announced a successful  proof-of-concept (POC) showcasing a disruptive quantum key distribution (QKD), the first scalable QKD over DWDM  solution in partnership with Coherent Corp. and Liberty Global. The demonstration marks a major milestone in the evolution of scalable, energy-efficient quantum-secure communications.

The POC, set to be showcased at ECOC 2025 (September 29 – October 1), features CUbIQ’s Continuous Variable Quantum Key Distribution (CV-QKD) transceiver in a QSFP-28 pluggable form factor – an industry-first innovation that integrates seamlessly into existing fiber infrastructure. This compact module enables quantum-safe encryption directly within the PTX Series routing platform, leveraging Coherent’s high-performance 400G ZR QSFP-DD DCO pluggable optical transceivers.

“CUbIQ’s mission is to make quantum security practical, scalable, and accessible,” said Aaron Albores Mejia, CEO of CUbIQ Technologies. “This collaboration proves that quantum-safe networking enabled by QKD can be achieved in an industry standard QSFP-28 form factor pluggable without overhauling existing infrastructure – ushering in a new era of secure communications.”

Coherent, an industry leader in high-speed optical transceiver technology, is partnering with CUbIQ to pioneer the next generation of secure, high-capacity optical pluggable transceivers, leveraging their proven expertise in advanced optical design and volume manufacturing,

“Coherent is excited to join Liberty Global, and CUbIQ Technologies in advancing quantum-safe networking,” said Julie Eng, CTO at Coherent Corp. “This proof-of-concept highlights how our optical technologies can enable secure, high-performance communications in the post-quantum future.”

Liberty Global, a global leader in converged broadband and mobile services, selected CUbIQ’s pluggable QKD solution to future-proof its network against quantum-enabled threats. The company views quantum technology as a strategic priority and sees this innovation as a potential game-changer for secure data transmission across its extensive European footprint.

“Liberty Global is thrilled about QKD pluggable technology, as it allows us to enhance our security portfolio with best-in-class, scalable, and cost-effective network encryption transport services.” said Kamiel Braet, Network Architect of Liberty Global”.

The joint solution enables Liberty Global and other customers to reinforce their IPsec and MACsec infrastructure with quantum-safe encryption—protecting networks, services, and end-user data from emerging quantum threats.