Relativity Networks Raises $22 Million in Financing
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Relativity Networks Raises $22 Million in Funding, Betting on Hollow Fiber to Reduce Latency in Cross-Park Interconnection of AI Data Centers.
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AI 数据中心扩张正受到电力和选址限制,网络传输时延也开始成为新的约束。Relativity Networks宣布完成 2200 万美元 SAFE 融资,并称已获得一笔来自大型超大规模云厂商的 4000 万美元后续订单,试图用空芯光纤切入这一市场。

融资与订单同步落地

这笔融资由 Rhapsody Venture Partners、Bell Ventures Inc. 和 Faster Than Glass LLC 等机构参与。SAFE 是初创公司早期常见的融资工具,通常会在后续定价轮中转换为股份。

除融资外,这家公司还拿到一笔 4000 万美元订单。下单方被描述为一家头部超大规模云服务商,但报道未披露具体名称。

主打空芯光纤方案

Relativity Networks开发的是空芯光纤。这类技术并不常见,与传统通过玻璃传导光信号的光纤不同,空芯光纤让光在光纤中央的空腔中传输,因此更接近光速理论上限。

公司称,这种方案可让数据传输速度比传统光纤快约 30%。按其测算,传统光纤中,信号传输 1 公里的时延约为 5 微秒;改用空芯光纤后,可降至约 3.5 微秒。

  • 传统光纤:约 5 微秒 / 公里
  • 空芯光纤:约 3.5 微秒 / 公里
  • 时延降幅:约 30%

瞄准跨园区 AI 算力互联

随着 AI 训练和推理系统扩大,算力不再局限于单个 GPU 机架。如今,一个数据中心园区可能横跨数百英亩、分布在数十栋建筑中,GPU 之间的物理距离随之拉长。

Relativity Networks认为,机会主要在多园区部署场景。也就是把原有数据中心连接起来,作为一个统一系统运行。这样做的背景是,开发商往往需要根据现有电力条件和可用机房位置来分散部署算力,而不是把所有设备集中在同一地点。

公司首席执行官 Jason Eisenholz表示,当前更大的 AI 系统正把算力分布到多个园区,以利用现有电力资源,但这些设施仍需要像一台同步机器那样协同工作。

按这一逻辑,若传输时延降低约 30%,开发商在达到同样时延门槛前,可接受的物理距离也会相应扩大约 30%。这意味着,数据中心的地理布局弹性可能提高,部分缓解 AI 基础设施扩张中的选址压力。

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