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Which effect would mask waveguide-based sensor readings due to surface imperfections?

A)Speckle from multimode interference
B)Chromatic dispersion broadening pulse
C)Fresnel reflection impedance mismatch
D)Anomalous diffraction transmission loss

💡 Explanation

Speckle artifacts degrade sensor fidelity because multiple coherent modes undergo constructive and destructive interference at the detector. Therefore speckle patterns appear, rather than a clean signal, because the interference obscures the desired optical changes related to the measurand.

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