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在sub-100-fs Kerr镜头模式锁定Yb:YAG环腔薄盘振荡器

Heyan Liu, Lisong Yan, Jingjie Hao

|June 1, 2023

概括

研究人员开发了一种超快的环腔薄盘振荡器,为这种配置产生最短的脉冲 (89 fs). 这一进步使得更高效的高阶波生成和双频子成为可能.

科学领域:

激光物理激光物理
超快的光学超快的光学
材料科学材料科学材料科学

背景情况:

环腔薄盘振荡器提供高功率和方向灵活性.
在这些系统中实现超短脉冲持续时间之前存在限制.

研究的目的:

为了开发一个锁定Kerr-lens模式的Yb:YAG薄盘振荡器.
为了达到尽可能短的脉冲持续时间从环腔模式锁定薄盘振荡器.
为了展示单向和双向模式锁定能力.

主要方法:

采用了带有Yb:YAG增强介质的环腔配置.
采用Kerr-lens模式锁定用于超短脉冲生成.
嵌入非线性板块,以诱导额外的光谱扩展.

主要成果:

实现了单向的89-fs脉冲,为此类振荡器类型报告的最短.
成功演示了双向模式锁定.
振荡器将高输出功率与超短脉冲生成相结合.

结论:

这项工作为锁定环腔模式的薄盘振荡器提供了创纪录的最短脉冲持续时间.
开发的振荡器是高效高阶波生成的基本工具.
在MHz重复率上实现高功率双频.

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