Lasers are semiconductor or solid-state devices that generate concentrated, coherent light for precision optical transmission, sensing, measurement, and illumination applications. They convert electrical energy into a highly focused optical signal with specific wavelength, power, and beam characteristics, enabling accurate and high-speed operation.

Available in various wavelengths, output powers, package styles, and configurations, laser components can be selected for applications ranging from compact electronic devices to advanced optical systems. They are commonly used in fiber-optic communications, optical data transmission, barcode scanners, laser sensors, measurement equipment, industrial systems, medical devices, and other applications requiring precise and controlled light output.