The FCC is drafting a rule to ban US imports of new-model optical transceivers manufactured in China, targeting a critical component that moves data over fiber-optic cables inside data centers. Reuters reported Monday that officials aim to publish the measure before year-end 2026, citing national-security concerns around potential data theft, malware installation, or service disruption. The rule is not yet final and could still be modified or shelved, but it follows a pattern: similar bans on foreign routers (2025), DJI drones (2025), and Huawei telecom equipment (2021).
Zhongji Innolight, a Chinese supplier, controls an estimated 27% of the global data center transceiver market and is estimated to hold over 56% of global manufacturing capacity. More than 90% of Innolight's revenue comes from US hyperscalers: Alphabet alone accounts for 22% of its revenue, Amazon for 11%, and Meta for 6.4%. Eoptolink, the second-largest Chinese competitor, holds roughly 15% market share. US alternatives Coherent and Lumentum lack the manufacturing scale to replace either firm in the near term; industry analysts estimate Coherent and Lumentum are roughly 30% overbought and running at capacity.
For hyperscalers racing to build AI clusters, a transceiver ban would create an acute supply pinch: optical interconnects are no longer a background component but a binding constraint on cluster throughput, especially as co-packaged optics (CPO) and near-packaged optics (NPO) move from rack-level connections toward chiplet communication. If the ban applies only to 'new models' rather than existing inventory, there will be a rush to source and stockpile before the rule takes effect. China could retaliate via indium phosphide export controls (70% controlled by China), which could cascade across US semiconductor manufacturing. The timing pressure on hyperscalers is immediate: the optical bill of materials for any cluster deployed in late 2026 or beyond must now assume either a reprieve, a phased transition, or urgent re-qualification of non-Chinese suppliers.