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← ScienceWhich consequence results when a microwave photonic filter's group delay varies non-linearly across bandwidth?
A)Pulse broadening occurs significantly✓
B)Amplifier noise figure decreases rapidly
C)Intermodulation distortion reduces dramatically
D)Spurious-free dynamic range increases markedly
💡 Explanation
Pulse broadening increases because chromatic dispersion arises therefore distorting the signal rather than improving noise or reducing intermodulation because group delay variation changes the phase relationship across the optical bandwidth.
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