What are the features of laser?

Lasers (Light Amplification by Stimulated Emission of Radiation) have several key features, including coherence, which means the light waves are in phase; monochromaticity, indicating that they emit a single wavelength or color; and directionality, allowing the light to be emitted in a narrow beam. Additionally, lasers exhibit high intensity and can focus energy on a small area, making them effective for applications ranging from medical treatments to cutting materials. Their ability to produce precise and controlled light makes them valuable in various fields, including telecommunications, manufacturing, and research.