This paper provides the experiment results of a 400 mm 4 2 combined slab amplifier system for high-power laser devices based on a new pumping configuration, which involves 37 nm-diameter pulse xenon lamps, a multilamp arrangement, an operating voltage of 31 kV and a uniform pumping arrangement comprising 12 and 14 xenon lamps in the middle and side flashlamp cassettes, respectively. The experimental results show that the small signal gain coefficient was 5.60% cm⁻¹. The pump-induced wavefront distortion accumulated by six slabs of Nd:glasses is 1.37λ peak-valley (PV) and the pointing offset value of pump beam is about 0.32 μrad/slab/pass. After discharging, the system was purged with clean gas at 0.4 m s⁻¹. The cleanliness in the cavity returned to level 100 within 20 s, and the heat recovery time of the system was about 2 h.

本文提供了基于新泵浦配置的用于高功率激光器件的 400 mm 4 2 组合板条放大器系统的实验结果，该系统包括直径 37 nm 的脉冲氙灯、多灯排列、工作电压为 31 kV 和一个统一的泵浦装置，包括分别位于中间和侧面闪光灯盒中的 12 和 14 个氙气灯。实验结果表明，小信号增益系数为5.60% cm ^-1。由六块 Nd:玻璃板累积的泵激波前畸变为 1.37 λ峰谷 (PV)，泵浦光束的指向偏移值约为 0.32 μ rad/slab/pass。放电后，系统在 0.4 ms ^{-1 时}用清洁气体吹扫. 型腔清洁度在 20 s 内恢复到 100 级，系统热回收时间约为 2 h。