相关实验视频
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20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
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通过结合模式演变来改善二极管端固态Nd:YAG棒放大器的性能预测
Optics express
|July 21, 2023
概括
这项研究引入了一种用于准确建模激光功率放大器束的新方法,改进了激光开发. 该方法通过将束视为复杂场,并通过二极管排放光谱进行校准来增强模拟.
科学领域:
- 激光物理 激光物理
- 光学工程是指光学工程.
背景情况:
- 主振荡器功率放大器 (MOPA) 系统对于增加激光输出功率至关重要.
- 当前的模型通常使用静态近似来进行束传播,并忽略光谱变化.
研究的目的:
- 为MOPA系统中多模纤维合 (FC) 束开发一种新且准确的分析模型.
- 将动态束演变和光谱特征纳入MOPA模拟中.
主要方法:
- 模拟多模式FC光束发射作为一个复杂的场所,使用仅相的高斯对平顶 (FT) 衍射光学元件.
- 将束集成到代的富里埃束传播方法中.
- 使用二极管发射频谱的实验测量校准模型.
主要成果:
- 使用末端的Nd:YAG晶棒进行实验验证显示,预测和实际输出功率之间有很好的一致性.
- 证明了高斯对FT仅相变换和实际多模FC二极管自由空间传播之间的强烈相关性.
- 这种新型模型准确地预测了MOPA性能在校准的功率范围内.
结论:
- 开发的模型在MOPA系统中提供了更准确的束动态表示.
- 这种方法提高了激光放大器模拟的预测能力.
- 精确的建模对于优化激光器开发和性能至关重要.
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