GT LASERS DWDM-1204, DWDM-1208 dense DWDM, which is based on mature thin film filtering technology, It has the feature of low insertion loss, high isolation and flexible channel configuration. It can bi-direction transmit 4 channel(1204) or 8 channel(1208) on one fiber up stream/down stream.
Uplink: C/Red-Band 1547.4~1563.4nm.
Downlink: C/Blue-Band 1528.0~1543.3nm.