The backbone of internet communication is built on the power of optical communication. From Wikipedia:
Optical communication, also known as optical telecommunication, is communication at a distance using light to carry information. It can be performed visually or by using electronic devices.
Scientists at the Photonics Laboratory at Chalmers University, Sweden, have developed a new type of optical amplifier that could dramatically increase the capacity, while decreasing the energy demand and noise distortion, of the best that optical commication currently has to offer.
Additionallly, this breakthrough could reduce the size of these amplifiers to millimeters in size.
A new optical amplifier could revolutionize optical communication
From www.techexplorist.com
2021-09-21 12:38:50
Amit Malewar
Excerpt:
….Along with offering high performance, this new amplifier is compact enough to integrate into a chip just millimeters in size. Most importantly, it does not generate excess noise.
Ping Zhao, Postdoc at the Photonics Laboratory at Chalmers, said, “We have developed the world’s first optical amplifier that significantly enhances the range, sensitivity, and performance of optical communication, that does not generate any excess noise – and is also compact enough to be of practical use.”
“The light amplification in the project is based on a principle known as the Kerr effect, which so far is the only known approach that amplifies light without causing significant excess noise. The principle has been demonstrated before, but never in such a compact format– previous versions were too bulky to be useful.”

