A single-carrier wireless link operating at a 100 Gb/sec data rate used advanced data coding, terahertz photonics, and wideband and linear devices to enable ultra-fast wireless connections in the 252 – 325 GHz band per the recently published IEEE 802.15.3d standard. The demonstration was devised by instrument maker Tektronix Inc. and IEMN, a major French research laboratory.
“Achieving 100 Gb/sec transmission in a single carrier helps to fill the gap between the worlds of fiber-optics and radio. By combining the concept with dedicated architectures and photonic-based THz circuits we are paving the way for far faster wireless transmission than what’s possible today,” said Guillaume Ducournau, an associate professor at IEMN/CNRS/University Lille working on THz communication systems.
The purpose of the new 802.15.3d standard is to provide for low complexity, low cost, low power consumption, high-data-rate wireless connectivity among devices and in the future ‘low terahertz’ bands. Potential applications include consumer multimedia, wireless switched point-to-point applications in data centers, wireless backhaul/front haul, intra-device communications and a wide variety of additional use cases such as rapid large multimedia data downloads and file exchanges between two devices in close proximity.
Achieving 100 Gb/sec and beyond requires the extension of carrier frequencies to the millimeter/sub-millimeter range, around 300 GHz, also called the “THz band.” Using a combination of optical coherent technologies and terahertz transceivers, this latest demonstration showcased the advances being made toward operational wireless links with THz frequencies and optical-equivalent data rates.
The demonstration was accomplished within the framework of several research projects including the COM’TONIQ, Era-net Chistera TERALINKS and TERASONIC ANR projects in terahertz communications. The French Equipex programs, “FLUX” (high-speed guided fiber/wireless-based advanced data coms) and “ExCELSIOR” (advanced characterization of nano-devices and systems) also supported this effort along with IEMN platform facilities and the RENATECH French nanofabrication network, IRCICA USR-3380. The demonstration was also supported by the CPER “Photonics for society” and contributes to the “digital world” Hub 3 of the I-Site Université de Lille Nord de France.
The Tektronix test equipment used in the IEMN demonstration included an AWG70000 Series 50GS/s arbitrary waveform generator, DPO70000SX 70GHz oscilloscopes and an OM5110 46GBd coherent optical transmitter.