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Which consequence results when birefringence is misaligned in optical fibers?

A)Polarization mode dispersion increases sharply
B)Fiber Bragg grating spectrum shifts
C)Stimulated Brillouin scattering threshold drops
D)Four Wave Mixing efficiency diminishes

💡 Explanation

Polarization mode dispersion emerges from differences in refractive indices along orthogonal axes; because the principal axes are misaligned, energy spreads between polarization modes, therefore increasing pulse broadening, rather than shifting spectra because of tension.

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