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

Fang, DengyangDengyangFangPeng, HuanfaHuanfaPengChen, YungYungChenDittmer, JoelJoelDittmerTessmann, AxelAxelTessmannWagner, SandrineSandrineWagnerMatalla, PatrickPatrickMatallaDrayss, DanielDanielDrayssLihachev, GrigoriiGrigoriiLihachevVoloshin, AndreyAndreyVoloshinSkacel, SebastianSebastianSkacelLauermann, MatthiasMatthiasLauermannKallfass, IngmarIngmarKallfassZwick, ThomasThomasZwickFreude, WolfgangWolfgangFreudeKippenberg, Tobias J.Tobias J.KippenbergRandel, SebastianSebastianRandelKoos, ChristianChristianKoos2025-07-312025-07-312025https://publica.fraunhofer.de/handle/publica/490105We 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.enWireless THz Communications at 250 Gbit/s Using Self-Injection-Locked Kerr Soliton Microcombs as Photonic-Electronic Oscillators at the Transmitter and Receiverconference paper