Lightwaves2020's thin film filter (TFF) based Ultra-Wide, Ultra High Isolation band WDM provides greatly improved isolation (>45 dB) and greater operational bandwidth (1310/1550) than typical WDM couplers while providing optimal performance.

The TFF based WDM has the same ø5.5 x 40 mm cylindrical package as conventional 3-port devices, saving on board space. With the addition of a band splitter, an upgrade option is provided for legacy 1310/1550 nm systems in access, CATV and other networks that enables them to expand their capacity through CWDM technology.

CWDM has the advantage of providing a low-cost entry point into WDM with earlier prove-in than DWDM. By adding up to 8 CWDM channels in the 1550 nm band, the capacity can be easily and cost effectively upgraded eightfold. Our high isolation splitter guarantees adequate signal crosstalk block-out throughout the entire 400nm wavelength range, while each of the CWDM channels are only capable of channel isolation around 200 nm. Furthermore, by providing high isolation in the 1310nm band, the highest quality signal is obtained.

As with all Lightwaves2020's products, the 1310/1550 nm WDM conforms to Telcordia requirements.