Peicheng Liao

TL;DR: Both experimental and simulation results show that power penalties increase rapidly when the displacement increases, and the influence of channel impairments on the received power, intermodal crosstalk among channels, and system power penalties is investigated.

TL;DR: This work indicates that OAM multiplexing and conventional spatialmultiplexing can be simultaneously utilized to provide design flexibility and performance enhancement in line-of-sight wireless communications.

TL;DR: This work experimentally demonstrates an 80 Gbit/s FSO system with a 2×2 aperture architecture, in which each transmitter aperture contains two multiplexed data-carrying OAM modes, indicating that OAM and MIMO-based spatial multiplexing could be simultaneously utilized, thereby providing the potential to enhance system performance.

TL;DR: This work experimentally demonstrates and characterize the performance of an OAM-multiplexed, free-space optical (FSO) communications link between a ground transmitter and a ground receiver via a moving unmanned-aerial-vehicle (UAV).

TL;DR: It is shown that Bessel-Gaussian orbital- angular-momentum beams are more tolerant to obstructions than non-Bessel orbital-angular-momentsum beams, and crosstalk and power penalty when data is transmitted are reduced.