重视 AIDC&光纤光缆新变化 20260326 摘要 康宁 G.657.A2 光纤涨价达 60%，G.652.D 预期突破 300 元/芯公里， 光棒产能受环评与设备周期限制，高价将维持至 2026 年。 AIDC 需求因 Token 消耗量爆炸式增长而加速爆发，字节跳动日均 Token 消耗量已跻身全球前三，引发阿里、腾讯对算力资源的白热化争 夺。 腾讯、阿里由自建转向大规模租赁第三方 AIDC 资源，主因 AIGC 需求 增速远超自建能力（年增需求达 10GW），行业进入量价齐升周期。 传统 IDC 面临"无效过剩"，符合 AIDC 标准（单机房>30MW、单基 地>100MW、绿电>80%）的稀缺资源在 2026-2027 年将出现供需逆 转。 AIDC 估值锚点为 1GW 储备对应 500 亿市值，核心变量在于是否锁定 头部客户及是否布局"东数西算"核心节点。 首推光环新网，其作为"字节 Token 工厂"拥有 2GW 储备资源，深度 绑定火山引擎，且天津、呼和浩特项目均位于核心算力节点。 腾讯近期在 AIDC 领域的布局策略有何重大变化，这对整个第三方 AIDC 行业 可能产生什么深远影响？ Q& ...

Investment Rating - The report maintains a "Buy" rating for the industry, indicating an expected investment return exceeding the market benchmark index by over 15% in the next 6-12 months [9]. Core Insights - The price of optical fibers and cables has significantly increased since early 2026, driven by rising demand from AI data centers, a shortage of raw materials, and the growing need for fiber in drone applications [2][3]. - The demand for optical fibers in AI data centers is projected to be 36 times higher than traditional data centers, with global demand expected to reach 69.6 million core kilometers by 2025 and 127.6 million core kilometers by 2030 [2]. - Major companies in the optical fiber and cable industry, such as Corning and Sumitomo Electric, have seen substantial stock price increases, reflecting positive market signals and order growth [3]. Summary by Sections Optical Fiber and Cable Market - The price of G.652.D single-mode fiber has risen from 18 yuan/km to 85-120 yuan/km, while G.657.A2 prices increased from 35 yuan/km to 210-230 yuan/km [1]. - The competitive bidding for optical fiber projects has been affected by rising prices, leading to some projects failing to secure bids [1]. AI and Data Center Demand - The demand for optical fibers is being driven by the need for high-speed data transmission in AI data centers, which require significantly more fiber than traditional setups [2]. - The production of optical fiber preform rods is constrained, with a long expansion cycle of 1.5 to 2 years, contributing to sustained high prices [2]. Company Performance and Recommendations - Companies like Longi Green Energy are expected to benefit from the ongoing price increases in optical fibers, with recommendations to monitor key players such as Corning, Furukawa Electric, and Sumitomo Electric [4]. - The report highlights the stability and cost control capabilities of companies like Kingboard Laminates, which are positioned to benefit from the rising prices of copper-clad laminates [6].