Measurement-device-independent quantum key distribution (MDI QKD) is a promising
protocol for removing all detector side channel attacks. However, the variation of reference …

Polarization drift in fiber and free-space optical links is a major factor in the dynamic
increase of bit error rate in polarization-coded quantum key distribution (QKD) systems. A …

Quantum key distribution (QKD) is a swiftly advancing field with the great potential to be
ubiquitously adopted in quantum communication applications, attributed to its unique …

The information-theoretic unconditional security offered by quantum key distribution has
spurred the development of larger quantum communication networks. However, as these …

A single-photon detector is an extremely sensitive device capable of registering photons,
offering essential technical support for optics quantum information applications. We review …

We demonstrated a laser ranging system with single photon detection at 1550 nm. The
single-photon detector was a 1-GHz sine-wave gated InGaAs/InP avalanche photodiode. In …

Quantum key distribution (QKD) using polarisation encoding can be hard to implement over
deployed telecom fibres because the routing geometry and the birefringence of the fibre link …

Polarization variations in the installed fibers are complex and volatile, and would severely
affect the performances of polarization-sensitive quantum key distribution (QKD) systems …

The calibration of the polarization basis between the transmitter and receiver is an important
task in quantum key distribution. A continuously working polarization-basis tracking scheme …

The development and wide application of quantum technologies highly depend on the
capacity of the communication channels distributing entanglement. Space-division …