Optoelectronics is a category of electronic components and devices that operate through the interaction between light (optical energy) and electrical signals. These products are designed to either convert electrical energy into light, convert light into electrical signals, or control and guide light using electronic means.
In electronic systems, optoelectronic components are commonly used as building blocks for light generation, light sensing, optical signal handling, and electrical-to-optical or optical-to-electrical interfacing.