Modular source for near-infrared quantum communication Federico Berra, Costantino Agnesi, Andrea Stanco, Marco Avesani, Sebastiano Cocchi, Paolo Villoresi and Giuseppe Vallone EPJ Quantum Technol., 10 1 (2023) 27 Published online: 12 July 2023 DOI: 10.1140/epjqt/s40507-023-00185-y