CWDM ABS Box Type

CWDM (Coarse Wavelength Division Multiplexer) Coarse Wavelength Division Multiplexer is composed of filter, self-focusing lens, dual fiber, glass tube and single fiber collimator. In principle, CWDM uses optical multiplexer to divide different wavelengths.The optical signal is multiplexed to a single optical fiber for transmission. At the receiving end of the link, the mixed signal in the optical fiber is decomposed into signals of different wavelengths with the aid of an optical demultiplexer, and then connected to the corresponding receiving device. It is a low-cost WDM transmission technology for the access layer of the metropolitan area network.