Frequency Division Multiplexing (FDM)
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Wavelength Division Multiplexing (WDM)
WDM is one of the implementation of #Multiplexing, classified as #Frequency Division Multiplexing (FDM), which utilises the feature of the light as a wave. Since light waves of different wavelengths do not interfere with one another within a medium, it is possible to multiplex different channel travelling in different wavelengths in a single Fibre-Optic Cable simultaneously.
- Multiplexing