Lightwaves2020 4-channel CWDM product is only 50x31x8.8mm in dimension! Utilizing Ligthwaves2020's proprietary free space TFF technology, the product guarantees pass bandwidth of ± 7.5nm over -20 ~ 70°C. The total insertion loss for all 4 CWDM channels is only ~ 0.8dB, giving much more flexibility on loss budget to the system designer. The product has wide applications in metro core and access networks, enterprise, CATV, 3G wireless telephony, PON and FTTx networks. The wide operating temperature range is particularly suitable for outdoor applications.

Manufactured using low thermal drift filters and proprietary packaging technologies, the 4-channel CWDM is designed to separate (demultiplex) or combine (multiplex) four coarse WDM channels. The demultiplexer (demux) modules are installed before the receivers in optical networks and the multiplexer (mux) modules are installed after the transmitters. The modules differ in that the demux modules require additional channel isolation in order to obtain clear signals. Module configuration can be custom-designed to meet specific system requirements.

In addition, Lightwaves2020's coarse WDM devices have epoxy-free optical paths and conform to Telcordia requirements.