A tiny “rainbow on a chip” could help supercharge 6G networks
Physicists have developed a microchip-based 'microcomb' that generates precise light frequencies to create millimeter waves. This technology could significantly increase bandwidth for future 6G networks and improve precision in radar and astronomical instruments.
Why it matters
It addresses the data capacity bottleneck in telecommunications, potentially enabling the next generation of high-speed wireless connectivity.
A microchip about the size of a grain of rice can generate a highly organized "rainbow" of light, a capability that could eventually support faster, higher-capacity 6G communications and extremely precise timing for quantum technologies.
Physicists at Loughborough University, working with an international research team, demonstrated a system that produces a series of precisely spaced light frequencies. Those optical frequencies can then be converted into multiple high-frequency electromagnetic signals known as millimeter waves.
Millimeter waves are attracting growing interest for future communications because they can provide considerably more bandwidth, giving networks more room to transmit data. A major obstacle, however, has been producing these signals with the precision and stability required for advanced applications.
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