Experimental demonstration of a 400-Gbit/s free space optical link using multiple orbital-angular-momentum beams with higher order radial indices

摘要

We report a transmission of 400 Gbit/s signal over a four channels, 1-meter mode-division-multiplexed free space optical communication link using multiple orbital-angular-momentum beams with non-zero radial indices, achieving a power penalty less than 6 dB.