Optical Orbital Angular Momentum Demultiplexing and Channel Equalization by Using Equalizing Dammann Vortex Grating

Figure 7

The error curves graph of the OAM optical communication system. (a) The error curves by using DVG and EDVG for demultiplexing, respectively. (b) The error curves by using DVG and EDVG for demultiplexing in the absence of channel crosstalk.

(a)

(b)