Core Insights - Google is implementing a cutting-edge architecture for AI clusters that utilizes Optical Circuit Switches (OCS) and high-speed copper cables for short-distance interconnections, while employing an all-optical network for data transmission across cabinets [3] - The design of the AI clusters requires sufficient 800G/1.6T optical modules, with TrendForce estimating that Google will ship nearly 4 million TPUs by 2026, leading to a demand for over 6 million optical modules exceeding 800G [3] - The Apollo OCS technology offers significant advantages in energy efficiency and cost-effectiveness, with a single OCS switch consuming approximately 95% less power compared to traditional switches [3] Supply Chain Analysis - Leading suppliers such as InnoLight and Eoptolink are expected to capture nearly 80% of Google's orders for optical modules exceeding 800G, due to their collaboration with Google on silicon photonics and the 1.6T platform [4] - Lumentum plays a crucial role in the OCS system and MEMS supply, with its capacity planning impacting the implementation pace of Apollo OCS [4] - The increasing demand for data transmission between cabinets and clusters necessitates advancements in high-speed optical modules and laser components, which will be critical for expanding computing power and managing costs [4]