STL and QNu Labs Partner to Advance Quantum-Secure Communication Over Optical Fibre Networks | Machine Maker – Latest Manufacturing News | Indian Manufacturing News – Latest Manufacturing News | Indian Manufacturing News

STL, a leading provider of integrated digital network solutions, has entered into a strategic partnership with QNu Labs Pvt Ltd to enhance research and development in the field of quantum communication over optical fibre infrastructure. QNu Labs, a deep-tech startup incubated at IIT Madras Research Park and supported by the National Quantum Mission (Department of Science & Technology, Government of India), is India’s first company to offer end-to-end quantum cybersecurity solutions. With a mission to safeguard digital networks from emerging quantum threats, QNu is playing a key role in India’s goal to become a global hub for quantum-secure communication technologies.

India’s quantum communication market is projected to reach nearly USD 140 million by 2030, growing at a compound annual rate of over 34%. With the ₹6,000 crore National Quantum Mission aiming to establish secure quantum networks by 2031, the country is actively investing in building scalable, next-generation security infrastructure.

STL has been at the forefront of innovations in optical fibre technology, including the deployment of Multi-Core Fibre (MCF)—a breakthrough designed to meet the growing demands of quantum communication. By utilizing Space Division Multiplexing in 4- and 7-core fibre, STL’s MCF enables ultra-high data transmission within the same fibre diameter.

This technology is well-suited for hyperscale data centres, 5G rollouts, and applications requiring massive bandwidth such as Gen AI, high-resolution media, and next-gen gaming. STL’s MCF cables were recently deployed in the Advanced Optical Communications Test Bed at IIT Madras, a Department of Telecommunications (DoT)-funded project that adheres to TEC-led Essential Requirements.

As part of this collaboration, QNu Labs successfully tested its Quantum Key Distribution (QKD) solution over STL’s 4-core MCF. The trial achieved secure key exchange across distances of up to 170 km, along with 800 Gbps of traditional data throughput. In another demonstration, secure key exchange was achieved over 150 km while supporting 1.8 Tbps of classical traffic—highlighting the feasibility of integrating quantum security into high-capacity fibre networks.

This partnership will combine STL’s advanced fibre-optic technology with QNu’s strength in QKD, post-quantum cryptography, and hybrid quantum security. Together, both companies aim to develop scalable and secure communication systems, making India a leader in quantum-safe networks globally. The joint effort will focus on research, proof-of-concept trials, and potential rollouts of quantum-resilient fibre connectivity across India and eventually, international markets.

Sunil Gupta, CEO of QNu Labs, said “This collaboration goes beyond safeguarding data—it’s about strengthening India’s position as a quantum-secure nation. STL’s capabilities in next-gen optical networks combined with our quantum security expertise will help shape the foundation of secure digital infrastructure, ready for future threats.”

Dr Badri Gomatam, Chief Technology Officer at STL, commented “Our work in pushing the limits of optical transmission now enters a new era with this partnership. QNu’s advancements in quantum security combined with STL’s experience in high-performance fibre solutions will allow us to build robust, secure networks for India and the global market.”

Founded in 2016 at the IIT Madras Research Park, QNu Labs is India’s pioneering company focused on quantum-safe cybersecurity. Its flagship platform QShield™ offers a full-stack, indigenously developed security suite for government, defence, and enterprise customers. With patented technologies and ongoing projects in QKD, satellite and free-space QKD, post-quantum cryptography, and crypto agility, QNu is working to secure digital infrastructure worldwide.

STL is a global provider of advanced network solutions, offering end-to-end infrastructure for AI-driven, rural, enterprise, FTTx, and data centre networks. With manufacturing across North America, Europe, and Asia, STL serves customers in over 100 countries. Its work with telecom operators, data centres, ISPs, and enterprises is guided by innovation, sustainability, and a deep commitment to customer success.