Performance analysis of vortex symmetric Airy beam as optical communication link through turbulence channel

Abstract The orbital angular momentum of the vortex beam can be used for information coding will help to improve the communication rate. The autofocusing phenomenon of the symmetric Airy beam (SAB) can help improve the light intensity in the receiving aperture. The vortex symmetric Airy beam (VSAB) which couples the autofocusing SAB and topological charge can provide new possibilities for the optical carrier of free space optical communication (FSOC). In this paper, the performance analysis of VSAB as the optical carrier propagation in the turbulence is studied. The evaluation parameters mean signal-to-noise ratio (SNR) and mean bit error rate (BER) for the VSAB propagating in turbulent atmosphere are calculated, using numerical calculations. The influences law of the parameters of the VSAB on evaluation parameters have been obtained.