What is Laser Diode ?

 Laser Diode

What is Laser Diode ?

A laser diode is a semiconductor device that emits coherent and focused light through the process of stimulating emission. It consists of a pn junction (a diode) with a gain medium that emits light when electric current is applied. The emitted light is typically in the form of a laser beam with a narrow spectrum of wavelengths. Laser diodes are commonly used in various applications such as telecommunications, barcode readers, laser pointers, optical storage devices, and laser printers.