Scientists at the University of Nottingham and University of Leeds stated that they have achieved the success in forming the terahertz quantum cascade lasers. Moreover, the outcomes of the latest research are accessible in the journal nature communication. The scientists added that they used the combination of light and acoustic waves to achieve the ultra-fast modulation.
Terahertz Quantum Cascade Lasers Making Data Transfer Faster Than Ever
Additionally, scientists envision that the latest development can offer a capability for the data transmission at 100 gigabits per second. Usually, this speed is about thousand times swifter as compared to the Fast Ethernet functioning at 100 Mbps. There is need of lasers modulation at higher speed to achieve the high speed data transmission at 100 gigabits per second. This modulation includes the process of switching on and off or pulsing at about 100 billion times per second. Till the time, the scientists could not achieve the data transmission at this higher speed.
What Makes Terahertz Quantum Cascade Lasers Unique
The key distinguishing factor between the terahertz quantum cascade lasers and that of other lasers is their light emission ability in the terahertz range of the electromagnetic spectrum. Moreover, terahertz quantum cascade lasers find use for the chemical analysis in spectroscopy field. In addition, a quantum cascade laser is highly proficient. The research team at the Nottingham and Leeds Universities did not employ exterior electronics to make the quantum wells inside the quantum cascade laser pulse. Instead, they used acoustic waves to achieve the promising outcomes.
Professor of Nanoelectronics at University of Leeds, John Cunningham, stated, “This study is exciting. At present, the system for modulating a quantum cascade laser is driven electrically—however, it has some limitations. Remarkably, the same electronics delivering the modulation typically hinders the modulation speed. The mechanism we are developing depends instead on acoustic waves.”