Product Description: CWDM optical multiplexer using different wavelengths of light signals multiplexed to a single optical fiber for transmission at the receiving end of the link, with the optical demultiplexer optical fiber in the mixed signal into signals of different wavelengths, connected to the appropriate receiver. Features: Low insertion loss, high speed transmission, high channel isolation, high stability and reliability Applications: CWDM Channel Add / Drop, metro / access networks, CATV optical network