What is Wavelength Division Multiplexing (WDM)?

Posted by Jonathan Benfield on Tue, Apr 20, 2021 @ 08:04 AM

What is Wavelength Division Multiplexing (WDM)?

WDM is a technology approach that allows for the combining ("mux") of multiple individual light wavelengths (signals/channels) from multiple lasers on a single fiber using a passive component for transmission to another location. At that receiving location, WDM components then work in the reverse, demultiplexing ("demux") the combined wavelengths back into individual signals and routed to their respective receivers.  

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Topics: wavelength filtering, WDM, cwdm, dwdm, wavelength division multiplexing