Spatial-Mode Diversity and Multiplexing for FSO Communication With Direct Detection
Spatial-Mode Diversity and Multiplexing for FSO Communication With Direct Detection
This work investigates spatial-mode multiplexing (SMM) for practical free-space optical communication (FSO) systems using direct detection. Unlike several works in the literature where mutually incoherent channels are assumed, we consider mutually coherent channels that accurately describe SMM FSO systems employing a single laser source at the transmitter with a narrow …