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← TechnologyWhich impairment results when signal processing attempts phase recovery across non-uniform fiber spans?
A)Nonlinear phase noise accumulation✓
B)Increased stimulated Brillouin scattering
C)Reduced chromatic dispersion compensation
D)Polarization mode dispersion escalation
💡 Explanation
Nonlinear phase noise accumulation occurs due to imperfect phase recovery by equalization, where varying fiber properties disrupt coherent addition, because accumulated nonlinearities aren't completely inverted by a static filter; therefore, phase noise boosts rather than proper compensation occurs.
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