Laser internet breakthrough sees scientists hit 98% fidelity over hundreds of meters —magnetic 'skyrmions' shield data from distortion in alternative to fiber-optic cables

Researchers have encoded data into a high-speed beam of light, with the information arriving intact despite exposure to significant heat and wind. This breakthrough could revolutionize the internet, communications, and more.

Transmitting data through the air typically presents a challenge: atmospheric conditions like wind and heat can distort and corrupt data, making it difficult to retrieve. However, a team of researchers from Wits University in South Africa and the University of Bordeaux in France believe they have found a solution to this problem, with potential implications for various sectors.

For their experiment, the researchers shot a beam of light through the air and encoded it with optical data. Upon recovery at the destination, they discovered that the data had arrived with over 98% fidelity, dropping to only 86% fidelity in the most severe conditions tested. How did they achieve this? According to their paper published in Science Advances, the data was encoded into magnetic structures within light called skyrmions, which acted as a protective shield, allowing the data to travel without alteration from the surrounding environment.

This phenomenon can be likened to the similarity between a donut and a coffee mug, as both contain a round hole that remains constant regardless of reshaping. Similarly, the light could be warped by heat and noise without compromising the data it carried. Professor Andrew Forbes, Head of the Structured Light Lab in the Wits School of Physics, explained this concept, highlighting the potential of this technology for improving satellite communications.

The researchers tested the technology over hundreds of meters, with various atmospheric conditions present. This suggests that it has real-world applicability, potentially reducing the need for constant real-time monitoring and correction of distortion in open air data transmissions. This technique could significantly reduce the difficulty and cost associated with such communications, particularly for space missions where fiber-optic cabling is not feasible.

High-speed satellite communications, quantum computing, and even underserved rural communities could benefit from this advancement, enabling high-speed internet beamed from the sky, similar to the Starlink system.