Optical waveguides Archives - IEEE Transactions on Quantum Engineering

Defending QKD Networks: Routing and Wavelength Assignment to Mitigate Physical-Layer Attacks

April 15, 2026Mengyao Li, Qiaolun Zhang, Zheng Zhang, Zongshuai Yang, Stefano Bregni, Alberto Gatto, Vicente Martin, Raouf Boutaba, Massimo TornatoreEarly Access, Open AccessAntennas, Central Processing Unit, Circuits, Communication systems, Electronic warfare, Feedback, Feeds, Jamming, Optical fibers, Optical waveguides

Abstract: Quantum key distribution (QKD) supports secret key exchange to enable data exchange with guaranteed security but remains vulnerable to key exchange interruption caused by physical-layer threats, such as high-power jamming attacks. In particular, in a fiber-based QKD network equipped with optical switching capabilities, a high-power jamming signal injected into a single link can be […]

A Sparse-Event Simulation Engine to Model Coincidence-Based Ranging Architectures in Quantum Lidar

Abstract: Nonclassical radar and lidar systems have received substantial interest recently; however, although many experimental demonstrations have provided deep physical knowledge of such systems, there remains a lack of effective system models to obtain fundamental metrics such as range resolution as a function of system parameters. This work introduces a high-fidelity simulation platform to mimic […]