智通财经APP获悉，长飞光纤光缆(06869)早盘涨超20%，盘中高见44.86港元创历史新高。截至发稿，涨19.07%，报43.96港元，成交额12.22亿港元。
消息面上，英伟达近日宣布推出 NVIDIA® Spectrum-XGS 以太网。这项跨区域扩展（scale-across）技术可将多个分布式数据中心组合成一个十亿瓦级 AI 超级工厂。随着 AI 需求的激增，单个设施内的数据中心功率和容量已达到极限。为了实现数据中心的扩展，必须打破建筑物的限制，而现有的商用以太网网络基础设施因高延迟、高抖动及性能的不可预测而无法满足需求。开源证券指出，scale-across技术有望成为继纵向扩展（scale-up）和横向扩展（scale-out）之后的AI计算“第三大支柱”，并进一步拉动AI算力互联产业发展，需高度重视光互连等相关板块产业机遇。
中泰证券此前研报指出，空芯光纤以空气为传输介质，其具备更低时延和更低损耗两种主要特性，是未来AI数据中心互联的主要品种。2025年7月中国移动首条空芯光纤商用或标志商用化进程有望加快，长飞光纤唯一中标人，实际中标价约3.6万元/芯公里。该行称，重点关注长飞光纤（空芯技术产能水平领先，并已在相关项目中标）等。
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