The demonstration is of a wireless system capable of transmitting data at 400 GHz (0.4 THz) using advanced signal coding (up to QAM-16) and key advanced THz devices.
Using a combination of optical coherent technologies and THz transceivers, the demonstration showcases the advances being made toward operational wireless links with THz frequencies and optical-equivalent data rates. The demonstration involved sending 32 Gbit/sec signals over distances of 25m and will provide the basis for future THz communications applications.
“As we have shown in this demonstration, the gap between the worlds of fibre-optics and radio can be bridged using photonic-based THz circuits,” said Guillaume Ducournau, an assistant professor at IEMN/CNRS/University Lille 1 working on THz communication systems. “Based on this first demonstration, the way forward for real-life THz communication systems is now open.”
The demonstration was accomplished within the framework of the COM’TONIQ French national project involving five partners coordinated by IEMN ( http://photoniquethz.iemn.univ-lille1.fr/contrat-anr-comtoniq/). “Research such as the French equipex “FLUX” (high-speed guided fibre/wireless-based advanced data coms) and “ExCELSIOR” (advanced characterisation of nano-devices and systems) programs are all coming together to support the development of these advanced networking technologies,” assistant professor Ducournau added.
“Tektronix is delighted to be working in such close collaboration with IEMN on achieving this prestigious breakthrough,” said Dr. Klaus Engenhardt, CTO Tektronix EMEA. “It’s exciting to see our industry-leading end-to-end transmit and receive solution (including Tektronix AWG70001A 50 Gsample/sec waveform generator, OM5110 46 Gbaud multi-format complex optical transmitter, Tektronix DPO77002SX ATI 70 GHz real time oscilloscope) used to help bridge coherent optical and THz transceiver technologies. Advanced test tools are needed today to generate and characterize signals at 100G, 400G and beyond and Tektronix offers a wide portfolio of optical communication test solutions.”
The Institute of Electronics, Microelectronics and Nanotechnology (IEMN) is a major French laboratory, with ~500 people working on micro-nanoelectronics, MEMS, optics and acoustics. Medium-term joint programs with industrial partners or other national institutions