Constant-Envelope Modulation of Orbital Angular Momentum Modes with 25 Gbit/s Underwater Optical Communication through Turbidity

In this paper, we demonstrate an underwater optical communication link which uses coherently coupled Orbital Angular Momentum (CCOAM). The data is modulated in the relative phase between to OAM beams demonstrating a power scalable link with 25 Gbit/s data rates in turbid coastal environments