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← TechnologyWhich failure mode arises when chromatic dispersion exceeds compensation limits in wavelength division multiplexing (WDM) optical fiber?
A)Signal pulse broadening and overlap✓
B)Increased stimulated Brillouin scattering
C)Optical Kerr effect induced instability
D)Elevated four-wave mixing probability
💡 Explanation
Signal pulse broadening and overlap occurs because chromatic dispersion, uncompensated, leads to different wavelengths traveling at different speeds across the fiber. This is intersymbol interference, rather than stimulated scattering effects, under specified power levels.
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