Fiber lasers are a type of laser that uses optical fibers as the gain medium to amplify light. This results in a more efficient and compact laser system compared to traditional solid-state lasers. Fiber lasers are known for their high power output, excellent beam quality, and reliability, making them ideal for a wide range of applications such as material processing, telecommunications, medical equipment, and defense. Research in fiber lasers focuses on improving their performance, exploring new applications, and developing innovative technologies to push the boundaries of laser technology.