Huaan Securities(SH:600909) Zhi Tong Cai Jing·2025-12-08 07:49Core Insights - The training of AI large models requires high communication bandwidth, low latency, and low power consumption, making Optical Circuit Switches (OCS) an ideal interconnection solution due to their high bandwidth and low latency characteristics [1][3] - The global OCS optical switch market is projected to grow from $0.07 billion in 2020 to $0.78 billion by 2025, with a compound annual growth rate (CAGR) of 62%, and is expected to reach $2.02 billion by 2031, with a CAGR of approximately 17.2% from 2025 to 2031 [3] Industry Overview - OCS is primarily applied in three major scenarios for AI computing clusters: Scale-Up (enhancing single-node performance), Scale-Out (multi-node collaboration), and Scale-Across (interconnecting across data centers) [2] - In a Google TPU cluster, a setup with 4,096 TPU v4 chips requires 48 OCS switches, indicating a TPU to OCS ratio of approximately 85:1, which improves to 192:1 with the future TPU v7 cluster [2] Market Dynamics - The OCS market is currently concentrated, with the top four manufacturers expected to hold about 69% of the market share by 2025, with Google and Coherent being key players [3] - The OCS industry chain consists of upstream core components, midstream equipment integration, and downstream applications, with high technical barriers and significant value concentration in upstream core components like MEMS micro-mirror arrays [3] Company Focus - Ying Tang Intelligent Control (300131) is expanding from electronic component distribution to semiconductor design and manufacturing, planning to acquire Guilin Guanglong Integration by 2025 to strengthen its OCS full-process layout [4] - Saiwei Electronics (300456) is a leader in MEMS process development and wafer manufacturing, with a significant portion of its revenue (83%) coming from MEMS business, and is expected to benefit from the growing demand for AI computing [4]