Laser components are essential parts that make up a laser system. These components include the laser gain medium, which amplifies light, and the optical cavity, where the light bounces back and forth to build intensity. Other important parts are the laser diode or flashlamp that provide energy, and the mirrors that reflect the light. In addition to these, lens are used to focus the laser beam, while filters can help control the wavelength of the emitted light. Together, these components work in harmony to produce a coherent and focused beam of light, which has various applications in fields like medicine, telecommunications, and manufacturing.