In the past, long-distance free-space quantum communication experiments could only be
implemented at night. During the daytime, the bright background sunlight prohibits quantum …

The future envisaged global-scale quantum-communication network will comprise various
nodes interconnected via optical fibers or free-space channels, depending on the link …

The performance of free-space optics communication (FSOC) is greatly degraded by
atmospheric turbulence. Adaptive optics (AO) is an effective method for attenuating the …

In free-space quantum key distribution (QKD), the sensitivity of the receiver's detector
channels may depend differently on the spatial mode of incoming photons. Consequently …

In high-speed free-space optical communication systems, the received laser beam must be
coupled into a single-mode fiber at the input of the receiver module. However, propagation …

High-altitude airborne platforms interconnected by free-space optical communications
(FSOCs) have recently emerged as a promising solution for establishing wireless networks …

High speed free space optical communication (FSOC) has taken advantages of components
developed for fiber-optic communication systems. Recently, with the rapid development of …

Despite its widespread use in fiber optics, encoding quantum information in photonic time-
bin states is usually considered impractical for free-space quantum communication as …

In this Letter, we propose and demonstrate efficient adaptive optics correction of a
distributed 19-element fiber laser array for both receiving and transmission for the first time …

Free-space optical (FSO) systems are compulsory to realize high capacity and interference-
free communication links from low-Earth orbit (LEO) satellite constellations as well as …