A cost-effective approach to introduce an optical WDM network in the metropolitan environment

摘要: A case study shows that an optical wavelength division multiplexing (WDM) network can be employed in a metropolitan cost effective way. In part, savings are realized due to the total number of line terminals required and fact dimensions electrical nodes decrease when exploiting cross connects (OXCs) large extent. Optical WDM rings also important building element designing network. properties classified, resulting eight different ring architectures. Additional requirements arise considering ring-to-ring connections. The extent chosen for is validated from transmission point view by simple model. Finally, as alternative all-optical approach, opto-electrical approach presented.