Optical WDM Networks: Traffic Grooming in Mesh Networks and Metro Networks using ROADMs

Optical Fiber technology employing wavelength-division multiplexing (WDM) has and continues to be investigated and commercially deployed to meet our ever-increasing bandwidth demands. WDM partitions the huge bandwidth of an optical ber into many non-overlapping wavelength channels, each of which can operate at the data rate of 10 Gbps (or 40 Gbps or higher)..