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DWDM (Dense Wavelength Division Multiplexing) is a group of optical wavelengths that can be combined to transmit using a single fiber. This is a laser technology used to increase bandwidth on existing fiber optic backbones. More precisely, the technology is to multiplex the tight spectral spacing of a single fiber carrier in a given fiber in order to take advantage of achievable transmission performance (for example, to achieve minimal dispersion or attenuation). In this way, for a given information transmission capacity, the total number of optical fibers required can be reduced.
DWDM multi-channel multiplexer /demultiplexer (Mux /DeMux)modules are available on ITU channel spacing of 200GHz. They demonstrate low loss, temperature insensitivity and reliable performance in any system application. Mux / DeMux modules offer low-cost wavelength management solutions that are suitable for long haul, metro, and access application.
