👉 The term "bluebead" is a colloquial term that refers to a type of blue light emitted by a certain type of fiber optic cable, which is commonly used in optical communication systems. Bluebeads are small, blue particles that are used to make fibers and cables because they absorb blue light more effectively than other colors. This makes them ideal for use in high-speed optical networks like fiber optic communications lines and optical fibers.