相关实验视频
Updated: Jul 12, 2025

10:17
20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
Published on: July 12, 2017
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概括
我们开发了一个紧的光纤放大器,以GHz速率产生高能,超短脉冲. 该系统在GHz重复速率下实现了多微日增强的最短脉冲持续时间.
科学领域:
- 光学和光子学 在光学和光子学.
- 纤维激光器 纤维激光器
- 超快速科学 超快速科学
背景情况:
- 高能,超短脉冲光纤放大器对于各种科学应用至关重要.
- 现有系统通常面临能量,脉冲持续时间或重复率的限制.
- 紧且可靠的放大系统是非常理想的.
研究的目的:
- 为了展示一种新的混合纤维放大系统,用于产生高能量,超短脉冲爆发.
- 为了实现GHz内爆脉冲重复率,使用多微日的脉冲能量.
- 使用标准元件开发一个紧可靠的系统.
主要方法:
- 采用混合放大方法,将动脉冲放大 (CPA) 和自我类似放大 (SSA) 结合起来.
- 采用一个保持偏振的纤维放大系统.
- 使用常见的双层覆盖的伊特 (Yb3+) 合纤维作为增强介质,避免使用大模式区域光子晶体纤维.
主要成果:
- 产生 200 个脉冲的爆发,具有 22 μJ 的能量,在 1.02-GHz 内爆发重复率和 1-MHz 间爆发重复率下.
- 实现了1065nm的中心波长,具有65nm的光谱带宽.
- 获得了大约35 fs的最佳压缩脉冲持续时间,这是多微珠,GHz级系统中报告的最短时间.
结论:
- 开发的混合光纤放大器系统成功地产生了高能,超短脉冲爆发在GHz速率.
- 该系统使用标准Yb3+合纤维,确保了紧性和可靠性.
- 这一进步为需要高能,超快脉冲的应用提供了一个有前途的工具.
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