One of the major drawbacks in lamp-pumped laser development resides in its low electrical input-to-TEM₀₀ mode laser conversion efficiency. Here is proposed a four-lamp/four-rod solid-state laser pumping concept. Four Nd:YAG rods were pumped by four 1.0 kW input power Krypton CW arc lamps within a quadruple ellipse pump cavity, ensuring a good absorbed pump power distribution within each rod. The laser design parameters were optimized in Zemax® and LASCAD® software to maximize the TEM₀₀ mode laser power. 35.80 W TEM₀₀ mode total laser power was numerically calculated, corresponding to 0.90% electrical input-to-TEM₀₀ mode laser conversion efficiency and 2.25 times improvement over that of the state-of-the-art lamp-pumped laser. For the extraction of a single TEM₀₀ mode laser beam, a novel laser cavity was presented. 25.94 W laser beam brightness figure of merit was numerically calculated, corresponding to a 4-fold increase over that from each of the four TEM₀₀ mode laser beams.

灯泵浦激光器开发的主要缺点之一在于其低电输入到 TEM ₀₀模式激光转换效率。这里提出了一种四灯/四杆固态激光泵浦概念。四根 Nd:YAG 棒由四根椭圆泵腔内的四个 1.0 kW 输入功率氪 CW 弧光灯泵浦，确保每个棒内的吸收泵功率分布良好。激光设计参数在 Zemax® 和 LASCAD® 软件中进行了优化，以最大限度地提高 TEM ₀₀模式激光功率。35.80 W TEM ₀₀模式总激光功率经过数值计算，对应于 0.90% 的电输入到 TEM ₀₀模式激光转换效率和最先进的灯泵浦激光器相比提高了 2.25 倍。为了提取单个 TEM ₀₀模式激光束，提出了一种新型激光腔。25.94 W 激光束亮度品质因数被数值计算，对应于四个 TEM ₀₀模式激光束中每一个的 4 倍增加。