N. Takachio et al., Wide area gigabit access network based on 12.5GHz spaced 256 channel super-dense WDM technologies, ELECTR LETT, 37(5), 2001, pp. 309-311
The authors propose a novel wide area access ring network utilising super-d
ense WDM technologies that offer 256 12.5GHz spaced optical wavelengths. A
multi-optical carrier generation scheme from one optical source is employed
to reduce the optical transmitter cost. This network can cost-effictively
provide gigabit access services.