CWDM are based on thin film filter technology ,these devices have broad passbands and high isolation and they are ideal for operation with inexpensive uncooled lasers.
CWDM devices are Telcordia GR-1221-CORE qualified . CWDM are epoxy-free in the optical path.
Features:
Extended temperature range
Flat and wide passband
High demux channel isolation
Application:
Metro optical networks
Access optical network
Enterprise networks