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← ScienceWhich consequence results when mismatched filter alignments occur in polarization-maintaining optical fiber?
A)Increased polarization mode dispersion (PMD)✓
B)Reduced chromatic dispersion effects
C)Enhanced Raman scattering efficiency
D)Suppressed Brillouin scattering threshold
💡 Explanation
Increased PMD occurs because filter misalignment causes imperfect polarization extinction via polarization coupling, inducing differential group delay between polarization modes. Therefore, signal distortion increases rather than suppressing scattering because extinction ratios are compromised with misalignment.
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