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← ScienceWhich outcome increases during optical fiber transmission under dispersion?
A)Pulse broadening due to group velocity✓
B)Decreased signal-to-noise ratio occurs
C)Increased reflection caused by impedance
D)Photon bunching accelerates rapidly instead
💡 Explanation
Pulse broadening increases due to group velocity dispersion, affecting **coherence** between the carrier and sidebands, because spectral components travel at varying speeds. Therefore, pulse width increases, blurring the signal rather than improved signal integrity under idealized signal conditions.
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