UTC Photodiodes on Silicon Nitride Enabling 100 Gbit/s Terahertz Links at 300 GHz

By means of micro-transfer-printing, we bring high-speed UTC photodiodes to a SiN-platform. These waveguide-coupled photodiodes show a responsivity of 0.3 A/W and a bandwidth of 155 GHz. We further demonstrate that direct photomixing at 300 GHz is possible and enables data rates up to 128 Gbit/s