光芯片深度：芯光璀璨，智算未来

Investment Rating - The investment rating for the optical chip industry is "Positive" and maintained [11] Core Viewpoints - Optical chips are a high-value segment within the optical communication industry, characterized by significant technical barriers and value [3][9] - The industry predominantly adopts the IDM model, which covers the entire process from design to manufacturing and testing, leading to high entry barriers [7][50] - Domestic optical chip manufacturers are expected to benefit from a combination of industry growth, structural opportunities in silicon photonics, and increased market share from domestic replacements [8][9] Summary by Sections Optical Chips - Optical chips are the core active components in optical communication, determining the quality, speed, and energy efficiency of optical signal transmission [6][21] - The transition from traditional discrete solutions to high-integration silicon photonics solutions is accelerating, driven by the limitations of existing technologies [6][36] Manufacturers of Optical Chips - Manufacturers typically use the IDM model, which enhances collaboration with downstream module manufacturers and allows for rapid iteration and optimization of processes [7][50] - The industry faces significant barriers in R&D iteration, process yield, and capacity expansion, with domestic manufacturers focusing on the CW light source route due to its shorter production chain and better yield optimization [7][9] AI and Connectivity Demand - The demand for optical chips is expected to rise due to the commercialization of AI by North American cloud providers, leading to increased capital expenditures and a positive feedback loop in computing power investments [8][9] - The supply side is constrained by a concentrated upstream InP substrate market and long expansion cycles, with a predicted 25%-30% shortfall in optical chips [8] Investment Recommendations - The report recommends focusing on leading domestic CW light source manufacturers, particularly Shijia Photon, and paying attention to Yuanjie Technology [9][12]