Orbital angular momentum (OAM), which describes tailoring the spatial physical dimension
of light waves into a helical phase structure, has given rise to many applications in optical …

X-ray beams carrying orbital angular momentum (OAM) are an emerging tool for probing
matter. Optical elements, such as spiral phase plates and zone plates, have been widely …

Accurate recognition of orbital angular momentum (OAM) modes is a major challenge for
OAM-based optical communications over atmospheric turbulence channels. The turbulence …

Atmospheric turbulence has an adverse impact on orbital angular momentum (OAM) beam
transmission, resulting in power fluctuations and mode crosstalk. These challenges are …

In practical applications to free-space quantum communications, the utilization of active
beam coupling and stabilization techniques offers notable advantages, particularly when …

With the development of space laser communication and the planned deployment of satellite
Internet constellations, there is a growing demand for microminiature laser communication …

We experimentally demonstrate the record long-haul orbital angular momentum (OAM)
mode-division multiplexed (MDM) transmission over 300-km assisted by a ring-core fiber …

Recently, structured light beams have attracted substantial attention in many applications,
including optical communications, imaging, optical tweezers, and quantum optics. We …

Spatial distortion phase seriously deteriorates the performance of heterodyne detection
system. Effective phase compensation is necessary to reduce the impact of the distortion …

Free-space optical (FSO) communication has attracted extensive attention in recent years.
To maintain a reliable FSO link, two main issues need to be addressed: beam drift and …