Integration of thin-film lithium niobate modulators on a SiN photonics platform (Invited Paper)

The integration of other materials on SiN enables new functionalities such as lasing, modulation and detection. Ligentec works on integrating all these functionalities on its low loss integrated photonics platform through heterogeneous integration. Through wafer-bonding, lithium-niobate and lithium-tantalate high-speed and low-insertion loss modulators are fabricated on a mature silicon nitride technology platform. We show a path towards scaling this approach for volume fabrication. Furthermore, we highlight device innovations that can increase bandwidth and lower drive voltage.