WDM, CWDM, and DWDM

LIGHTEL Wavelength Division Multiplexers/DeMultiplexers(WDMs) are used to combine and/or separate two or more onto, or out of a single fiber. There are several options based on the number of wavelengths, isolation desired, bandpass characteristics, and power levels.

Fused WDM

LIGHTEL Fused Biconic Taper(FBT) WDMs are reliable and field proven. They are designed to combine or separate two wavelengths, while keeping all the light within the fiber. Many custom wavelength options are available, in addition to standard specification devices.

Filter WDM

LIGHTEL Filter WDMs use Thin Film Filters to perform the Multiplexing or DeMultiplexing functions. They are reliable, and feature excellent isolation characteristics. . Many custom wavelength options are available, in addition to standard specification devices.

CWDM

Coarse Wavelength Division Multiplexers(CWDMs) from Lightel are based on central wavelengths specified by the ITU-T G.694.2 spectral grid. These TFF devices are offered in standard or extended bandpass versions. They are available as single or multichannel devices.

DWDM

Dense Wavelength Division Multiplexers(DWDMs) from Lightel are based on central wavelengths specified by the ITU-T G.694.2 spectral grid. These TFF devices are offered in standard 100GHz or 200GHz frequency spaced versions. They are available as single or multichannel devices.