Japan creates first 6G device, achieves speed of 112 Gbps

Updated: May 19th, 2026

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Japan has achieved a major breakthrough in internet technology with the development of a revolutionary 6G prototype device capable of delivering speeds of up to 112 Gbps, nearly 20 times faster than current 5G networks. The innovation is being seen as a game-changer for downloading, streaming, and future communication systems.

Reports suggest that Japan replaced traditional electronic circuits with advanced laser-based technology to achieve the ultra-high speed. A key role was played by a tiny optical device known as an “optical microcomb,” which works like a highly precise laser ruler. It generates stable light beams with extremely low digital noise, helping researchers produce accurate terahertz signals for seamless high-speed data transmission without interruptions or errors.

One of the biggest advantages of the new system is its resistance to vibrations. In conventional chip technology, vibrations can disturb laser alignment and affect performance. To solve this issue, researchers directly attached optical fibers to a silicon nitride microresonator chip, reducing instability and allowing the setup to function efficiently within a compact space. A temperature controller was also added to protect the system from environmental interference.

The breakthrough was reportedly achieved using the 560 GHz frequency band. Earlier attempts with multiple frequencies had created technical problems, while traditional electronic circuits struggled to handle such high-frequency operations. Tests in the 350 GHz band also produced excessive phase noise, making stable communication difficult.

Japanese researchers achieved this speed using the 560 GHz band

As per reports, researchers from Tokushima University overcame these challenges by eliminating electronic circuits altogether and replacing them with laser-based systems. Using the 560 GHz band, they successfully achieved the historic 112 Gbps speed without major disruptions, marking a significant step toward the future of 6G communication technology.

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