Germanium-on-silicon mid-infrared grating couplers with low-reflectivity inverse taper excitation

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Alonso-Ramos, Carlos; Nedeljković, Milos; Benediković, Daniel; Soler Penadés, Jordi; Littlejohns, Callum; Khokhar, Ali; Perez-Galacho, Diego; Vivien, Laurent; Cheben, Pavel; Mashanovich, Goran;

A broad transparency range of its constituent materials and compatibility with standard fabrication processes make germanium-on-silicon (Ge-on-Si) an excellent platform for the realization of mid-infrared photonic circuits. However, the comparatively large Ge waveguide ... View more
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