Find competitive dwdm equipment prices for your fiber optic needs. Wholesale options available from reliable suppliers. Perfect for 3G, 4G, and 100G networks. Buy CWDM & DWDM Transceiver Modules (SFP/SFP+/XFP, 1270-1610nm, 50/100 GHz Gris, up to 120km) for WDM application at FS. 25 nm SFP10G (100-GHz ITU grid). The CWDM/DWDM transceiver modules are designed to be compatible with existing technologies those already deployed in the field, interworking with. Corning's dense wavelength division multiplexers (DWDMs) are integrated optical modules that combine, or multiplex, and separate, or demultiplex multiple optical signals of different wavelengths in a single fiber. Our DWDM modules include MUX/DEMUX.