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← TechnologyWhich transmission fault arises when chromatic dispersion exceeds limits in long-haul fiber optics?
A)Signal pulse broadening occurs✓
B)Increased laser mode hopping
C)Reduced signal extinction ratio
D)Elevated bit error frequency
💡 Explanation
Signal pulse broadening happens because chromatic dispersion causes different wavelengths to travel at slightly varying speeds, therefore pulses spread rather than maintaining clean signals. This timing distortion degrades bit transmission.
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