Tektronix, a worldwide provider of measurement solutions, has announced that its instruments played an important role in a technology demonstration that could one day enable the next generation of ultra-high bandwidth wireless communications links. In an article published in the journal Nature Communications, an international research team reported the first transmission of two real-time video signals through a terahertz multiplexer at an aggregate data rate of 50 gigabits per second, some100x faster than cellular networks, the company said.
With demand for wireless data transmission speeds and capacities growing beyond what microwave signals can carry, the search is on for ways to use higher frequency THz waves that have a much larger capacity to carry data. One of the teams the way is an international collaboration between Brown University and the Institut d´Electronique de MicroÃ©lectronique et de Nanotechnologie (IEMN), CNRS/University of Lille, in France.
This team has previously shown that the worlds of fiber optics and radio can be bridged using photonic-based THz circuits to achieve high-data rates. However, for any system to be viable, a system for multiplexing and demultiplexing (mux/demux) signals is a fundamental requirement. Using a waveguide system involving two metal plates in parallel, the researchers encoded two high-definition television broadcasts onto terahertz waves of two different frequencies: 264.7 GHz and 322.5 GHz. They then sent both frequencies together into the multiplexer system, with a television receiver set to detect the signals as they emerged from the device. Further experiments show that this system could deliver data rates up to 50 Gb/s with low error rates.
Headquartered in Beaverton, Oregon, Tektronix delivers innovative, precise and easy-to-operate test, measurement and monitoring solutions that solve problems, unlock insights and drive discovery. Tektronix has been at the forefront of the digital age for over 70 years.