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Updated: Jul 29, 2026
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20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
Published on: July 12, 2017
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概括
研究人员使用充满的空心纤维和修改的振荡器种子脉冲产生了可调节分离的几周期双脉冲. 这种方法可以实现高能超短双脉冲的无损生成.
科学领域:
- * 超快激光科学与技术 * 超快激光科技
- * 非线性光学是一种非线性光学.
- * 光纤光学纤维的使用
背景情况:
- *产生超短双脉冲与控制分离对于各种科学应用至关重要.
- *以前的方法往往会出现能量损失或有限的捕能力.
- * 光学系统中的非线性效应可能会使脉冲操纵复杂化.
研究的目的:
- * 展示一种用于产生可调节分离的几周期双脉冲的新方法.
- * 实现无损放大和精确控制脉冲特征.
- * 克服超短脉冲生成现有技术的局限性.
主要方法:
- * 使用充满的空心纤维 (HCF) 进行非线性脉冲分裂.
- * 采用的镜子压缩机进行脉冲压缩.
- *对振荡器种子脉冲的光谱相和振幅进行基于模拟的修改.
主要成果:
- * 在750nm时实现3mJ,1kHz,5 fs双脉冲的无损生成.
- * 已证明可调节的脉冲峰值分离从10到100 fs.
- *成功地减轻了放大器中的自我聚焦和非线性相位拾取.
结论:
- * 开发的技术可以精确控制超短双脉冲的产生.
- * 这种方法在产生高能量,短周期的双脉冲方面取得了重大进展.
- * 在HCF中可调节的非线性脉冲分裂是实现短脉冲分离的关键.
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