Corning's New Glass Interconnect Technology Aims to Reshape Optical Communications
Corning unveiled its "Glass Bridge" technology, designed for next-generation AI data center interconnects. The technology uses glass waveguides for direct optical connection between fibers and photonic integrated circuits, potentially impacting component suppliers.
IT Home (China) – Corning introduced its "Glass Bridge" technology on June 24, targeting next-generation AI data center architectures. The product utilizes glass waveguide technology to enable direct optical connections between optical fibers and Photonic Integrated Circuits (PICs).
The announcement has triggered immediate shifts in global capital markets, with investors reassessing the optical communications industry. Concerns are particularly focused on the potential impact on suppliers of components for fiber array units (FAU).
In contrast, module integrators are seen as relatively secure. Analysts suggest that "Glass Bridge" can be used in both CPO and NPO architectures. Its broader application in NPO is expected to partially offset potential risks in CPO, limiting the anticipated impact on AI optical transceiver module manufacturers.
However, upstream optical component leaders face greater pressure. Tianfu Communication, for instance, is directly exposed to potential substitution risks in the FAU market due to this new technology. While growth in its active optical engine business may mitigate long-term challenges, the immediate prospect of replacement in the FAU segment poses a significant consideration.
Conversely, the glass substrate and Through-Glass Via (TGV) segments are set to benefit. BOE A, reportedly the only A-share panel manufacturer with a public cooperation framework with Corning, has invested significantly in developing a glass substrate packaging carrier production line. However, the supply of high-end semiconductor-grade glass substrates suitable for IOX waveguides is currently dominated by Corning, AGC, and NEG, making the market reliant on imports in the short term.
"Glass Bridge" is still in the early stages of development and has not yet completed full technical certification with leading cloud vendors. Widespread commercialization prospects remain subject to industry adoption pace. For the Chinese supply chain, "Glass Bridge" presents both pressure for FAU capacity contraction and opens new opportunities in TGV precision processing and glass substrate packaging.