Fig. 1. Intensity distributions of focused and collimated BGBs propagating 1000 m in vacuum. (a) Intensity of focused BGB at source plane; (b) side view of focused BGB after transmitting 1000 m; (c) intensity of focused BGB at receiving plane; (d) intensity of collimated BGB at source plane; (e) side view of collimated BGB after transmitting 1000 m; (f) intensity of collimated BGB at receiving plane

Fig. 2. Receiving power and crosstalk power of BGB with different focusing parameters F₀ in atmospheric turbulence

Fig. 3. Influences of wavelength and topological charge on receiving power. (a) Wavelength; (b) topological charge

Fig. 4. Influences of waist radius and width parameter on receiving power. (a) Waist radius; (b) width parameter

Fig. 5. Influences of turbulence intensity and anisotropy coefficient on receiving power. (a) Turbulence intensity; (b) anisotropy coefficient

Fig. 6. Influences of internal and external scales of turbulence on received power. (a) Internal scale of turbulence; (b) external scale of turbulence

Fig. 7. Spiral spectrum distributions of BGBs with different topological charges propagating in turbulence. (a) Collimated BGB; (b) focused BGB

Fig. 8. Spiral spectrum distributions of focused BGBs with different topological charges in atmospheric turbulence. (a) l=1; (b) l=2; (c) l=3