Modular Photonics announces OMPlex, a compact device connecting to the ends of OM1-4 multi-mode fibre that allows for single-mode performance extending the transmission length to several kilometres for 10G, 40G and beyond. The technology relies on the exclusive excitation of the fundamental mode in multi-mode fibre. OMPlex future proofs multi-mode fibre networks without requiring fibre recabling, building works or major service interruptions.