Optical switches are devices that control the flow of light signals in optical networks. Unlike traditional electronic switches that use electricity, optical switches manipulate light beams to direct data. This technology is essential for high-speed communication, as it allows for faster data transfer and reduced latency. These switches can be used in various applications, including telecommunications, data centers, and fiber optic networks. By enabling efficient routing of light signals, optical switches help improve network performance and capacity, making them crucial for modern digital communication systems.