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  中新网深圳8月1日电 (孙秋霞 雷少波)中国移动近日在广东开通我国首条反谐振空芯光纤商用线路,不仅实现了我国自主研发、具备完全自主知识产权的反谐振空芯光纤从技术原型到实际应用的跨越,而且为深港两地跨境金融业务搭建起一条超低时延的“信息高铁”。

  作为光通信领域的颠覆性技术,反谐振空芯光纤与传统实芯光纤截然不同。它采用“反谐振”反射导光原理,将光信号约束在直径仅20多微米的“空心玻璃管”中传输,好比用磁悬浮轨道替代传统铁轨,一是传输速度全面提升,二是同等载客量下跑得更远,三是同等距离下载客量更强。相比实芯石英光纤,其传输时延降低超30%,损耗减少近50%。

  据了解,此次商用部署的空芯光纤重点优化深港证券交易所数据中心间的双向数据传输时延。实测数据显示,线路启用后,两地交易所跨境数据传输时延降至1.07毫秒,适配高频交易等对时延极度敏感的跨境专线业务。

  此外,数据在此线路传输过程中损耗小于0.09dB/km(光衰计量单位),相较于当前市面上常用的光纤,损耗降低7.6倍,刷新全球商用光纤光缆最低损耗纪录,显著提升信号传输距离与效率。

  此次首条商用线路的开通,标志着我国新型光通信核心技术在应用上迈出实质性步伐,为粤港澳大湾区国际金融枢纽建设和跨境金融业务高质量发展筑牢技术根基。

  据悉,未来,中国移动将持续深化空芯光纤等前沿技术的研发与规模部署,联合业界伙伴推动其在国际数据业务、高频金融交易等时延敏感型场景的规模化应用。(完)

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