Which outcome occurs when atmospheric turbulence reduces coherence across a laser beam used in free-space optical communication?

💡 Explanation

Increased bit error rate occurs because atmospheric turbulence causes beam spreading, reducing the effectiveness of spatial filtering; this leads to signal degradation through wavefront distortions—called scintillation. Because the beam loses intensity coherence, therefore the signal becomes unrecoverable, rather than improving for modulation.

• Which molecular distortion occurs when antibonding orbitals are populated?
• Which consequence results when a dielectric with small defects is persistently exposed to intense Microwave radiation?
• Which consequence results when anisotropic pressure distorts a piezoelectric crystal lattice?
• Which consequence results when repulsive configurations overwhelm molecular orbital overlap?
• Which outcome reduces water's surface tension contacting surfactants?
• Which effect arises when extreme Lorentz transformation distorts spacetime?