200GHz dense wavelength division multiplexer (DWDM) 

utilizes thin film coating technology and proprietary 

design of non-flux metal bonding micro optics packaging 

to achieve optical add and drop at the ITU wavelengths. 

It provides ITU channel center wavelength, low insertion 

loss, high channel isolation, wide pass band, low temperature 

sensitivity and epoxy free optical path . It can be used for 

wavelength add/drop in telecommunication network system.

http://www.sopofiber.com