Dense Wavelength Division Multiplex (DWDM)

The DWDM “Dense Wavelength Division Multiplex” describes a performant method for parallel transfer of many connections via fibre optic cables. The transmission is carried out by several different wave length/colours lying closely together. For the installation, highly precise and thermally stable lasers need to be used. The advantage of DWDM lies in its high reach of several 100 kilometres.