Scientists in South Korea have developed a new form of data transmission using light — Li-Fi — which significantly outperforms traditional methods due to its higher speed and improved security, reports Baltimore Chronicle with reference to Tech Xplore.
Li-Fi (Light Fidelity) operates in the visible light spectrum ranging from 400–800 THz, similar to LED lighting, and can achieve data transmission speeds up to 100 times faster than conventional Wi-Fi. Among its benefits are optimal frequency distribution and reduced radio interference. However, traditional Li-Fi technology posed a vulnerability: the signal could potentially be intercepted by unauthorized parties.
To address this issue, South Korean researchers developed a new optical communication technology featuring on-device encryption. This system, called an “on-device encryption optical transmitter,” simultaneously converts data into light and encrypts it at the device level. This approach enables a high level of data protection without the need for complex additional equipment.
Professor Himchan Cho noted that the technology holds significant potential for widespread adoption in sectors where security will be a decisive factor in the future.
Earlier we wrote that 10G internet in China: world’s first commercial network.