Laser Diode

A laser diode is a small electronic device that emits a focused beam of light when electricity passes through it. It works similarly to a regular diode, which allows current to flow in one direction, but with the added ability to amplify light. This process creates a coherent and monochromatic beam, meaning the light is uniform in color and travels in parallel waves. Laser diodes are widely used in various applications such as barcode scanners, optical disc players, and fiber optic communications due to their efficiency and precision. They are essential in modern technology for both consumer and industrial use.