Polarisation or Mode Distortion is an optical phenomenon where high bandwidth signals, typically higher than 10Gb, tend to broaden as they travel down the #Fibre-Optic Cable. This could cause inter-signal interference.
Polarisation or Mode Distortion
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Fibre-Optic Cable
Although it still faces possible degradation as the light travel down in the fibre, the deterioration is usually less than its copper counterpart. There are primarily four form of deterioration for the light pulse: attenuation#, dispersion and non-linearities#, chromatic distortion#, and polarisation or mode distortion#.