Investment Rating - The report suggests a long-term positive outlook for the PIC (Photonic Integrated Circuit) sector, indicating it as an inevitable path for the development of the optical communication industry [2]. Core Insights - PIC is not merely an upgrade of the industry chain but represents a systematic reconstruction of optical communication, driven by the increasing demand for computing power due to AI [1]. - The integration of multiple optical components into a single chip through PIC technology allows for high levels of integration and modularity, shifting the industry from an "assembly model" to a "chip-based manufacturing" paradigm [1]. - The core value of the industry chain is shifting towards design and process capabilities, enabling companies with autonomous PIC design capabilities to define optical path architectures and dominate the process routes, thus gaining significant bargaining power and high-value segments in the industry [1]. - The demand for optical modules/engines has surged from millions to tens of millions, with future projections reaching hundreds of millions, necessitating new capacity forms to meet this growing demand [2]. - The report emphasizes the importance of design capabilities and process accumulation as core barriers to entry in the PIC sector, highlighting companies with leading positions in PIC design, key processes, and upstream materials [2]. Summary by Sections Industry Dynamics - The report indicates a significant shift in the optical communication industry, with a projected increase in demand for optical modules driven by AI, necessitating a transition to more efficient manufacturing processes [2]. - The integration of advanced packaging and system architecture through PIC technology opens up new opportunities for optical interconnects across various scenarios, expanding the market from data centers to broader applications [1]. Key Companies to Watch - Companies with leading positions in PIC design include Zhongji Xuchuang, Xinyi Sheng, Kecuan Technology, and Huagong Technology, along with notable non-listed firms such as Xihe Technology and Saili Technology [2]. - In the area of PIC supporting chips/devices, companies like Tianfu Communication, Yuanjie Technology, and Dongtian Micro are highlighted as key players [2]. - For packaging and system integration, companies such as Suosi, Guangxun Technology, and Cambridge Technology are recommended for attention [2].