%O This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. %P 1043-1046 %T Evolving Optical Core Networks: Understanding the Impact of Topology Redesign using Space and Wavelength Domains on Network Throughput %L discovery10181504 %X In this work, the benefits of network re-design with spatial division multiplexing (SDM) and ultra-wideband (UWB) are investigated. For the first time a comprehensive study of 200 generated topologies and optimal routings show throughput-cost trade-off of re-designing networks with UWB and SDM. %A Robin Matzner %A Buglia Henrique %A Bayvel Polina %C Glasgow, UK %I IET %B 49th European Conference on Optical Communications (ECOC 2023) %D 2024