中国“空心光纤”投入商用：给光信号造“磁悬浮”高速轨道，时延直降30%
据央视新闻10月5日报道，我国下一代通信关键技术“空心光纤”已率先在宁夏中卫的智算中心之间投入商用，传输时延与损耗直降30%以上。
空心光纤直径不足0.4毫米，内部嵌入20根微型玻璃圆柱，让光信号在接近真空的空气通道中传输，速度可达光速的99.7%，远超传统光纤约69.5%的物理极限。通信工程师本月在相距30公里的数据中心之间首次大规模部署，解决了远距离算力传输的超高时延难题，为AI算力时代的跨区域算力网络铺出一条“磁悬浮”高速轨道。
China Puts Hollow-Core Fiber Into Commercial Use, Cutting Latency Over 30%
China's next-generation communications technology, hollow-core fiber, has entered commercial use between intelligent computing centers in Zhongwei, Ningxia, cutting transmission latency and loss by more than 30%, CCTV News reported on Oct. 5.
Less than 0.4mm in diameter with 20 micro glass cylinders embedded inside, the fiber lets light signals travel through a near-vacuum air channel at 99.7% of the speed of light — far above the roughly 69.5% physical limit of conventional fiber. Engineers deployed it at scale for the first time this month between data centers 30km apart, solving ultra-high latency for long-distance computing power transmission.
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