OFC 2026前瞻：硅光子与CPO如何重塑下一代AI互联体系

Core Viewpoint - Optical interconnect is becoming a critical bottleneck and opportunity for AI infrastructure as the demand for bandwidth in AI data centers accelerates [3][8] Group 1: Optical Interconnect Technology Trends - The focus of the optical communication industry is shifting from 800G to 1.6T production, driven by the increasing scale of AI clusters [1][3] - The physical limitations of copper cables are pushing optical devices closer to the chip side to address power consumption, loss, and transmission distance constraints [4][6] - The upcoming OFC 2026 conference will highlight the technological paths for 1.6T and 3.2T optical modules, as well as the competition between co-packaged optics (CPO) and pluggable solutions [3][6] Group 2: Market Dynamics and Product Evolution - The optical module market is experiencing a clear upgrade rhythm, with 800G products entering a strong growth phase in 2025 and 1.6T products beginning mass production in the second half of this year [5] - Accelink has publicly showcased a 1.6T OSFP224 DR8 transceiver aimed at AI data center applications, indicating the market's readiness for advanced optical solutions [5] Group 3: CPO vs. Pluggable Solutions - The debate between CPO and pluggable solutions is a key focus at OFC 2026, with CPO seen as a long-term evolution direction for large-scale data centers due to its potential to reduce power and signal loss [6] - Major companies like NVIDIA, Broadcom, and Marvell will discuss manufacturability issues related to CPO, which are crucial for its transition from technical validation to commercial scalability [6] Group 4: Key Technological Variables - Silicon photonics heterogeneous integration, including the fusion of silicon photonics with thin-film lithium niobate (TFLN) and III-V materials, is a major focus at OFC 2026 [7] - The supply-demand bottleneck in laser technology is identified as a key factor limiting the scale expansion of optical interconnects [7] - Optical I/O (OIO) technology is emerging as a promising direction for supporting decoupled deployments in AI systems [7] Group 5: Strategic Outlook - The OFC 2026 conference coincides with a critical moment for the accelerating demand for optical interconnects in AI data centers, marking a strategic competitive window [8] - The simultaneous advancement of multiple technology curves, from 800G to 1.6T and from copper to optical solutions, is shaping the foundation of the current optical interconnect revolution [8]