Detector of Optical Vortices as the Main Element of the System of Data Transfer: Principles of Operation, Numerical Model, and Influence of Noise and Atmospheric Turbulence

Figure 4

Influence of phase and amplitude noise with amplitudes 𝐴_𝑛𝑆 and 𝐴_𝑛𝐴 on maximum and mean values of intensity ⟨𝐼_𝑟⟩ calculated over 150 realizations. Results were obtained with Δ=180^∘ and 𝜑=0 (a, b) and with Δ=180^∘ and 𝜑=0 (c, d). Amplitudes of noise were taken as 𝐴_𝑛𝐴=0.5 (a, c) and 𝐴_𝑛𝑆=0.6𝜋 (b, d). The mean values of intensity calculated according to (21) coincide with curves in figures.

(a)

(b)

(c)

(d)