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← ScienceWhich risk increases when a long-distance fiber optic cable experiences stress-induced birefringence?
A)Increased pulse broadening✓
B)Reduced core refractive index
C)Faster signal amplification
D)Enhanced material dispersion
💡 Explanation
Birefringence causes polarization mode dispersion because optical signals with random polarization states propagate at different speeds, therefore pulse broadening increases rather than other effects, as modal interference destroys coherence.
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