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← ScienceWhich outcome limits destructive interference accuracy in fiber optic gyroscopes?
A)Sagnac effect phase shift inaccuracy
B)Kerr effect induced index changes✓
C)Rayleigh scattering wavelength-dependent loss
D)Fresnel reflections at fiber interfaces
💡 Explanation
Kerr effect introduces non-linear phase shifts dependent on intensity, disrupting intended balanced destructive interference—a systematic error source. This dominates at high powers because the shifts are additive, rather than loss/reflection alternatives.
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