authors Vakarin, Vladyslav Ramírez, Joan Manel Frigerio, Jacopo Liu, Qiankun Ballabio, Andrea Le Roux, Xavier Alonso-Ramos, Carlos Isella, Giovanni Vivien, Laurent Cheben, Pavel Ye, Winnie N Marris-Morini, Delphine
keywords MMI MU-M Optics Physical Sciences SILICON Science & Technology WAVE-GUIDES free space communications mid-infrared photonic integrated circuits polarization insensitive silicon-germanium waveguides