二极管面阵侧泵浦Nd:YAG双板条激光器
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摘要: 叙述了二极管面阵侧泵浦双板条耦合单横模 Q 开关激光器的研制。泵浦源为二极管面阵激光器,使用梯形波导板耦合系统,耦合效率达90%,谐振腔为凸凹腔,全反射镜的曲率半径为 3.0m的凹面镜,输出镜为曲率半径3.0m的可变反射率超高斯镜。激光器在 100Hz 重复频率下,输出单脉冲能量18.23mJ,脉宽为15.25ns,光束质量M2<1.5具有平顶分布的超高斯光束。
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关键词:
- 二极管泵浦固体激光器 /
- 板条激光器 /
- 波导板耦合系统
Abstract: A diode sidepumped Qswitched Nd:YAG doubleslab oscillator designed for high power solid state laser has been demonstrated. Diode laser power was transferred by a trapezoidal waveguide plate into the slabs and the optical coupler efficiency was 90%. The oscillator was a convexconcave resonator. Highreflection mirror of curvature radius was 3.0m. A VRM of supergaussian was used for output couplers with curvature radius of 3.0m. The output is of single pulse energy 18.23mJ, pulse width 15.25ns and 100Hz repetition rates and beam quality factor. The output beam was a flat topped supergaussian beam.-
Key words:
- diodepumped solidstate laser /
- slab laser /
- waveguide plate coupler
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