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← ScienceWhich consequence results when optical fiber birefringence induces polarization mode dispersion?
A)Pulse broadening reduces data rate✓
B)Increased reflectivity enhances signal strength
C)Spectral shift minimizes chromatic aberration
D)Enhanced coherence improves modal confinement
💡 Explanation
Optical fiber birefringence introduces differing refractive indices, causing polarization mode dispersion; because different polarization modes travel at varying speeds, pulse broadening occurs influencing data rate. Therefore, pulse broadening limits fiber communication speeds, rather than affecting reflectivity or coherence.
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