Low-coSt and energy-efficient hybrid Photonic integrated circuits for fibeR-optic, free-space optIcal and mmWave commuNication systems supporting Time critical networking in industrial EnviRonments - Carpintero Del Barrio, Guillermo; Lamela Rivera, Horacio; Garcia Muñoz, Luis Enrique; Sanchez Rodas, Miguel; Ali, Muhsin; Delgado Mendinueta, Jose Manuel (2022)