Which mechanism causes signal loss when optical fiber sustains bending?

A)Stress-induced birefringence reduces polarization✓

B)Increased modal dispersion alters wavelength

C)Material fatigue lowers refractive index

D)Cladding impurities raise scattering losses

💡 Explanation

Stress induces birefringence because asymmetrical stresses shifts indices which alters polarization. Therefore, the propagating polarization state shifts away optimal angles which are efficiently transferred rather than transmitted at maximum power despite low intrinsic scattering.

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Which mechanism causes signal loss when optical fiber sustains bending?

💡 Explanation

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