Novel node upgradation strategy for migration to elastic optical networks
For migration from dense wavelength division multiplexing (DWDM) networks to elastic optical networks (EON),it is required to upgrade the traditional reconfigurable optical add-drop multiplexer (ROADM) to the new-generation ROADM that Faux Tweed Coats supports flexible grids.However,for a large-scale optical network,it is generally impossible to up