Vast geographical distances in Africa are a leading cause for the so-called digital divide due
to the high cost of installing fiber. Free-space optical (FSO) communications offer a …

Studying the transition from a linearly stable coherent laminar state to a highly disordered
state of turbulence is conceptually and technically challenging, and of great interest because …

We study the performance of diversity combining techniques applied to synchronous laser
communication through the turbulent atmosphere. We assume that a single information …

This book provides a comprehensive review of the state-of-the art of optical signal
processing technologies and devices. It presents breakthrough solutions for enabling a …

Free-space optical communication has the potential to transmit information with both high
speed and security. However, since it is unguided it suffers from losses due to atmospheric …

In free-space optical communications that use both amplitude and phase data modulation
(for example, in quadrature amplitude modulation (QAM)), the data are typically recovered …

The spatial structuring of optical fields is integral within many next generation optical
metrology and communication techniques. A verifiable physical model of the propagation of …

Wide-bandwidth signal transmission with low latency is emerging as a key requirement in a
number of applications, including the development of future exaflop-scale supercomputers …

To avoid a'capacity crunch', future optical networks will need to simultaneously transmit
multiple spatial channels. For spatial multiplexing to be practical, the upgrade path from …

The ever-increasing data rate demand for wireless systems is pushing the physical limits of
standalone radio-frequency communications, thus fostering the blooming of novel high …