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基于Kerr-lens模型的Ho:YAG薄盘振荡器的能量缩放到微珠级别
Optics express
|August 13, 2025
概括
研究人员在2.1μm的Kerr-lens模型 (KLM) Ho:YAG薄盘激光器 (TDL) 中实现了创纪录的峰值功率. 这一进步显著提高了这些先进的激光系统的脉冲能量和峰值功率.
科学领域:
- 激光物理 激光物理
- 固态激光器 固态激光器
- 光电学是指光电子产品.
背景情况:
- 由于其独特的排放特性,Ho:YAG薄盘激光器 (TDL) 对各种应用至关重要.
- 之前在Ho:YAG TDL中Kerr-lens模型化 (KLM) 的努力显示出希望,但在功率和脉冲能量扩展方面遇到了局限性.
- 在需要特定光谱范围的应用中,在2.1μm达到高峰功率和脉冲能量是必不可少的.
研究的目的:
- 调查和证明KLM Ho:YAG TDL在2.1μm的峰值功率和脉冲能量缩放.
- 为了优化性能,比较不同的激光配置.
- 为了在这种激光类型的峰值功率和脉冲能量方面创下新纪录.
主要方法:
- 在Ho:YAG薄盘激光 (TDL) 配置中使用了KLM技术.
- 采用不同的激光设计,系统地研究缩放效应.
- 测量输出功率,脉冲能量,脉冲持续时间和计算的峰值功率.
主要成果:
- 达到最大脉冲能量为1.7μJ,输出功率为29W.
- 产生了持续434 fs的脉冲,导致3.7 MW的峰值功率.
- 与之前的KLM Ho:YAG TDL相比,脉冲能量增加了5倍,峰值功率增加了4倍.
- 达到了创纪录的高峰功率为2.1-μm模块化振荡器.
结论:
- 成功地将KLM Ho:YAG TDL的峰值功率和脉冲能量缩放到2.1μm的记录水平.
- 确定了当前的局限性,阻碍了在这个波长下进一步扩展.
- 为未来的研究提供了指导方针,以实现更高的功率和脉冲能量.
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