This Open Compute Project (OCP) white paper surveys major OCS technologies, including robotic mechanisms, Micro-Electro-Mechanical-System (MEMS) beam steering, liquid‐crystal devices, piezo‐actuated systems, and silicon‐photonics switches, comparing trade‐offs in radix . This Open Compute Project (OCP) white paper surveys major OCS technologies, including robotic mechanisms, Micro-Electro-Mechanical-System (MEMS) beam steering, liquid‐crystal devices, piezo‐actuated systems, and silicon‐photonics switches, comparing trade‐offs in radix . Optical Circuit Switching (OCS) has emerged as a critical technology for next‐generation Artificial Intelligence (AI) and hyperscale data‐center networks. Traditional Electrical Packet‐Switch (EPS) fabrics increasingly struggle with congestion, power consumption, and scalability constraints as. The exponential growth of data traffic, primarily fueled by the proliferation of Artificial Intelligence (AI) and high-performance computing (HPC), is pushing traditional electronic packet-switched networks to their physical limits. In response, Optical Circuit Switching (OCS), once a static. Optical Circuit Switches (OCS) by Application (Telecommunications, Data Communications), by Types (Robotic Switching, 3D-MEMS, Beam Steering), by North America (United States, Canada, Mexico), by South America (Brazil, Argentina, Rest of South America), by Europe (United Kingdom, Germany, France. This 4Q25 report is a continuation of and update to Cignal AI's previous OCS reports. Since the report's last publication in January 2025, and the webinar Optical Circuit Switching for AI Scaling and Datacenter Automation in July 2025, the OCS forecast has been updated based on newer information. Circuit Design for Scalable and Fast Optical Circuit Switching By Erik Francis Anderson A dissertation submitted in partial satisfaction of the requirements for the degree of Doctor of Philosophy in Engineering - Electrical Engineering and Computer Science in the Graduate Division of the University. Optical Circuit Switching (OCS) technology represents the strategic evolution of optical networks from traditional “connection” functions to intelligent “switching” functions, serving as a key path to solving the bandwidth bottlenecks and power consumption issues of traditional electrical.