Novel 'Dual-Grating Assisted Directional Coupler' Developed For Nanophotonics

A collaborative research project between Innos (UK R&D company) and the universities of Surrey, Southampton and the Politecnico di Bari in Italy has developed a novel method for coupling light from an optical fibre to 200nm thick silicon waveguides in optical communications. The project has demonstrated the highest recorded coupling efficiency of 55%.