高功率全光纤连续激光器以其转换效率高、光束质量好、热控管理方便和结构紧凑灵活等优点,成为国际激光技术领域的研究热点之一。最近,清华大学光子与电子技术研究中心成功实现了全光纤连续激光器1.63kW激光输出。高功率全光纤激光器采用种子源加两级级联放大器方案,结构原理如图1所示。光纤种子源模块由LD抽运耦合器、双 High-power all-fiber continuous laser has become one of the hot spots in the field of laser technology due to its advantages of high conversion efficiency, good beam quality, convenient thermal management and compact structure. Recently, the Photonics and Electronics Technology Center of Tsinghua University successfully achieved 1.63kW laser output of all-fiber continuous laser. High-power all-fiber laser seed source plus two cascaded amplifier program, the structural principle shown in Figure 1. Fiber seed module consists of an LD pump coupler, double