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Quantum Networks
Quantum Networks
This lab explores and creates new quantum networking mechanisms to defend against cyber-attacks and ultimately access quantum computers. To accomplish these goals, this lab develops cutting-edge quantum key distribution (QKD) systems and associated use cases. QKD uses the laws of physics rather than mathematical algorithms to ensure the security of keys and protect mobile communications, such as video streaming, conferencing and file sharing.
The lab has developed a QKD system prototype for optical and wireless access networks. It delivers quantum keys among secure sites over optical fibers and shares them via Wi-Fi with mobile users within each site. The keys are then used to encrypt mobile data traffic through the network’s Transport Layer Security (TLS). In addition, the lab creates a quantum network using repeaters and routers, through which entangled qubits will interact with the quantum computers that are starting to emerge.
Lab Equipment and Capabilities
Commercial QKD testbed (ID Quantique Clavis 3) based on coherent one-way protocol
QKD testbed based on polarization-encoding BB84 protocol with decoy-state capability
Sub-nanosecond weak coherent pulse sources with pulse-width 0.1–3 ns
Time interval analyzer/controller (ID Quantique ID900)
Polarization modulators based on phase modulators and Faraday mirrors
Four single-photon detectors (ID Quantique Cubes) with a time resolution of 100 ps
Polarization-entangled photon source from OZ Optics
Meet Our Lab Expert
Dr. Jing Wang
Dr. Jing Wang is a principal architect of optical and wireless technologies. He joined CableLabs in 2017 as a lead architect of optical and wireless technologies. His research interests include QKD networks, quantum internet, optical and wireless access networks and radio fiber convergence. He received his Bachelor and Master of Science degrees in electronic engineering from Tsinghua University, Beijing, China, and his doctoral degree in electrical and computer engineering from Georgia Institute of Technology, Atlanta, GA.
Connect with Dr. Jing WangExplore Our Other Labs
Kyrio Inc., a subsidiary of CableLabs, provides lab testing of network equipment for cable, PON, and mobile operators and their suppliers.
These labs host advanced technologies and expertise including Advanced Optics & Fiber, Hybrid Fiber Coax, Mobile, Wi-Fi, Convergence, Cloud Native, Security, Wireless PHY/RF Analysis and AI and Machine Learning. These can be interconnected to simulate a wide range of network architectures and scenarios.
The System & Device Test Environments, used by Kyrio, can be configured to simulate wide-ranging scenarios—from large anechoic chambers to 3D-printed radio frequency (RF) modeling to advanced optics benches.