Multifiber vs. Ultra-Wideband Upgrade: A Techno-Economic Comparison for Elastic Optical Backbone Network

We report the evolution of cost-per-bit with the growth of core optical network traffic while comparing multifiber and ultra-wideband solutions. Results show that ultra-wideband systems can save 30% of the total cost while using 22.2% less upgrades than multifiber C band system.