1.2 kW便携式光纤激光器

1.2 kW portable fiber laser

高功率光纤激光器通常采用如水冷散热方式进行控温,难以满足轻量化等的需求。而利用相变储能材料的特性,采用多相变控温技术,可大幅减小高功率光纤激光器系统的体积、重量。对光纤激光器的温控技术进行了分析,采用多相变温控技术,实现了波长1.08μm、最大功率1.26 kW的全光纤激光输出,光-光效率75.4%,光束质量因子M_(x)^(2)=1.21,M_(y)^(2)=1.23,有效减小了激光器的体积和质量,为高功率光纤激光器的热管理提供了新方法。

High-power fiber lasers usually use water-cooled heat dissipation methods for temperature control,which are difficult to meet the needs of light.By using the characteristics of phase change energy storage materials and multi-phase change temperature control technology,the volume and weight of high-power fiber laser systems can be greatly reduced.In this paper,the temperature control technology of the fiber laser is analyzed,and the multi-phase change temperature control technology is used.The all-fiber laser output with a wavelength of 1.08μm and a maximum power of 1.26 kW is achieved.The light-light efficiency is 75.4%,and the beam quality is M_(x)^(2)=1.21,M_(y)^(2)=1.23.The volume and weight of the laser is effectively reduced.It provides a new method for thermal management of high-power fiber lasers.