论文标题
分散工程的多通电池，用于单阶段的YTTERBIUM激光器的单级压缩
A dispersion-engineered multi-pass cell for single-stage post compression of an Ytterbium laser
论文作者
论文摘要
超快激光脉冲的压缩方法通常面临着具有挑战性的局限性，包括饱和效应和时间脉冲破裂，当针对大型压缩因子和宽带宽度时。为了克服这些局限性，我们利用了充满气体的多通电池中的直接分散控制，这是150 FS脉冲的首次单阶段压缩，并从YTTERBIUM（YB）光纤激光器向下至20 fs的YTTERBIUM（YB）光纤激光器最多250 UJ脉冲能量。分散工程的介电腔镜用于实现以98％吞吐量在大型压缩因子和带宽上以自相度调节为主的非线性光谱扩展。我们的方法为YB激光器单阶段压缩的途径打开了一条途径。
Post-compression methods for ultrafast laser pulses typically face challenging limitations including saturation effects and temporal pulse break-up when large compression factors and broad bandwidths are targeted. To overcome these limitations, we exploit direct dispersion control in a gas-filled multi-pass cell, enabling for the first time single-stage post-compression of 150 fs pulses and up to 250 uJ pulse energy from an Ytterbium (Yb) fiber laser down to sub-20 fs. Dispersion-engineered dielectric cavity mirrors are used to achieve nonlinear spectral broadening dominated by self-phase-modulation over large compression factors and bandwidths at 98% throughput. Our method opens a route towards single-stage post-compression of Yb lasers into the few-cycle regime.
