Fiber lasers are a type of laser that use optical fibers doped with rare-earth elements, such as ytterbium or neodymium, to generate laser light. They are known for their high efficiency, compact size, and excellent beam quality. The light produced is typically in the infrared spectrum, making it suitable for various applications, including cutting, welding, and marking materials. One of the key advantages of fiber lasers is their ability to deliver high power with minimal maintenance. They are also more energy-efficient compared to traditional CO2 lasers, which helps reduce operational costs. This technology is widely used in industries like manufacturing, telecommunications, and medical applications.