采用液态金属传热的小型大功率全固态Nd∶YAG板条激光器

Miniature high-power all-solid-state Nd∶YAG slab laser with liquid metal heat conduction

摘要: 为了满足小型光电系统对微小型大功率激光器的研制要求，通过液态金属传热设计，提高散热效率，使得激光器在小体积下实现高能量输出。采用复合板条工作物质集成谐振腔以及激光放大技术，在激光电源电流80 A、工作频率为5 Hz时，激光器在1064 nm输出单脉冲能量为160 mJ，脉宽为6 ns,发散角为3 mrad的激光。

Abstract: In order to fulfill the requirements of small opto-electronic systems for miniature high power lasers, a heat conduction manner based on liquid metal was designed, which improved the heat transfer efficiency, and a high energy laser with a small volume was made. Using compound slab active materials integrated resonator and laser amplification technology, when the supply current was 80 A and the pulse frequency was 5 Hz, a 160 mJ pulse laser at 1.064 nm was obtained, with a pulse width of 6 ns and a divergence angle of 3 mrad.