IT Home News on 10/6: @CCTV News posted on Weibo yesterday (10/5) that China's next-generation key communication technology "hollow-core fiber" has been put into commercial use first between intelligent computing centers in Zhongwei, Ningxia, with transmission latency and loss directly reduced by more than 30%,building a “maglev” high-speed track for light signals in the AI computing power era.
This fiber has a diameter of less than 0.4 mm, with 20 miniature glass cylinders embedded inside, providing a low-loss, high-speed transmission channel for light signals. It is expected to achieve ultra-low latency and ultra-large bandwidth, improve the transmission efficiency of cross-regional computing power networks, and support the application of next-generation communication technologies.
This month, communications engineers deployed hollow-core fiber at scale for the first time between data centers 30 km apart in Zhongwei, Ningxia, solving the ultra-high latency problem caused by being thousands of kilometers away from computing-demand regions such as Beijing, Tianjin and Hebei.
IT Home, citing the blog post, reports that hollow-core fiber hollows out the glass core of traditional fiber, with multiple layers of microstructures embedded in the tube wall, allowing light signals to travel through an air channel close to a vacuum,with speed soaring to 99.7% of the speed of light, far exceeding the physical limit of about 69.5% for traditional fiber.
Compared with traditional solid-core fiber, hollow-core fiber achieves the unity of ultra-low latency, ultra-low loss and ultra-large bandwidth, which also clears the biggest obstacle for lossless long-distance transmission.
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