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Definition of "WDM" |
Wavelength-division multiplexing is a method of combining multiple signals on laser beams at various infared wavelengths for transmission along fiber optic media. Each laser is modulated by an independent set of signals. Wavelength-sensitive filters, the IR analog of visible-light color filters, are used at the receiving end. / Half-duplex refers to the transmission of data in just one direction at a time. / See wavelength division multiplexing. |
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