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← ScienceWhich consequence results when differential polarization rotation occurs?
A)Material exhibits stress-induced birefringence
B)Faraday rotation decreases signal power
C)Polarization mode dispersion limits bandwidth✓
D)Reduced laser amplification efficiency observed
💡 Explanation
Polarization mode dispersion arises from differential polarization rotation within optical fibers, because varying group velocities cause pulse spreading. Therefore bandwidth is limited, rather than power loss via Faraday rotation, which requires magnetic field or stress induced birefringence, which requires external force.
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