Fiber Optics - Switches, Multiplexers, DemultiplexersOptoelectronics is the study and application of electronic devices that produce or utilize light. Fiber optics is a technology that uses thin strands of glass or plastic to transmit light over long distances. In fiber optic systems, switches, multiplexers, and demultiplexers are used to control the flow of light signals. Switches are used to route light signals from one location to another, multiplexers are used to combine multiple light signals into a single signal, and demultiplexers are used to split a single light signal into multiple signals. These devices are an important part of fiber optic systems, and are used in a variety of applications, including telecommunications, medical imaging, and industrial automation.