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Coarse Wavelength Division Multiplexing (CWDM)

Coarse wavelength division multiplexing (CWDM) is a wavelength division multiplexing (WDM) technology that combines multiple signals at various wavelengths for simultaneous transmission over fiber cables. This passive technology allows for any protocol to be transported over the link, as long as it is at a specific wavelength (i.e. T1 over fiber at 1570nm transported alongside 10Gbps Ethernet at 1590nm).

CWDM is a low-cost method to maximize existing fiber by decreasing the channel spacing between wavelengths. CWDM has a lower cost per channel than dense WDM (DWDM) and no configuration is necessary. CWDM optical devices can increase bandwidth on existing fiber infrastructure and alleviate fiber exhaustion. CWDM optical devices are available as 4-channel, 8-channel or 16-channel mux/demux modules or as an add/drop module.

Transition Networks’ CWDM solutions support these different channel variations as well as add/drop modules. Our CWDM module is also available in a hardened temperature grade for our 16-channel mux/demux to provide you the right solution for your network. View our CWDM solution below.

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