Laser Diodes

Laser diodes are specialized semiconductor devices that emit coherent, focused light through a process called stimulated emission. When electrical current flows through them, electrons meet specific energy states and release photons (light particles). These photons stimulate other electrons to emit more light with identical wavelength and phase, creating a concentrated and powerful beam. Laser diodes are used in various applications like barcode scanners, optical communication, laser pointers, and CD/DVD players, offering precise, efficient, and directed light sources. Their compact size and fast response make them essential in modern technology.