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Which outcome results when atmospheric turbulence disrupts coherence through long fiber links?

A)Increased bit error rate occurs
B)Amplifier spontaneous emission enhancement results
C)Polarization mode dispersion decreases slightly
D)Four-wave mixing effects are mitigated

💡 Explanation

Atmospheric turbulence causes signal degradation because it interferes with spatial coherence in guided fiber modes, leading to increased bit error rates. Spatial coherence must be maintained, therefore transmission quality suffers rather than improving owing to reduced dispersion effects.

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