DWDM Channels with Numbers for ITU-T G.694.1 100GHz Spacing C-Band Frequency Grid
How the DWDM Method Works
A DWDM system offers the possibility of collecting and amplifying optical signals while providing those signals without the need to convert them into electrical signals. The Dense Wavelength Division Multiplexing (DWDM) method increases the capacity of the transmitted optical signals by assigning the incoming signals to specific wavelengths within a frequency band and then multiplexing them over an optical glass fiber link. On the receiver side, Demultiplexers separates the combined optical signals and passes each channel to an optical receiver. Instead of using an optical fiber with only one transmitter and receiver pair, the DWDM technology allows several optical channels to be transmitted simultaneously via the fiber pair.
Available Frequency Bands and DWDM Channels In the case of optical data communication there are different frequency bands which are suitable for the transmission of signals, providing a large number of different channels in the wavelength range from