A. Posadas, V. Stenger, J. DeFouw, G. Mashanovich, D. Wasserman, A. Demkov
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Electro-Optic Barium Titanate Modulators on Silicon Photonics Platform
Single crystal barium titanate with both c-axis and a-axis orientation have been epitaxially integrated on silicon-on-insulator wafers. Electro-optic Mach-Zehnder modulators with both X-cut and Z-cut configurations are fabricated that exhibit Pockels coefficients of 180 and 130 pm/V, respectively, with Vpi-length values of <5 V-mm.