Wireless THz Communications at 250 Gbit/s Using Self-Injection-Locked Kerr Soliton Microcombs as Photonic-Electronic Oscillators at the Transmitter and Receiver

We demonstrate wireless THz transmission and reception using self-injection-locked Kerr soliton microcombs as photonic-electronic oscillators both at the transmitter and receiver. We achieve record-high single-channel line rates of 250 Gbit/s transmitted over 55 m and demonstrate THz spread-spectrum trans-mission at signal-to-noise ratios (SNR) down to −16 dB.