Trinity College Dublin (TCD), request the supply of the High-Resolution Optical Spectrum Analyser for use in the development of a national Quantum Communications Infrastructure, IrelandQCI. The vision of IrelandQCI is to build a national quantum communication network that will support an innovative quantum technology ecosystem that will enable and drive the transition from research-based experimental quantum systems and devices to commercialisation-ready quantum communication products, solutions and services and lay the groundwork for international networks.