Gebhardt M, Gaida C, Heuermann T, Stutzki F, Jauregui C, Antonio-Lopez J, Schulzgen A, Amezcua-Correa R, Limpert J, Tünnermann A
Opt Lett. 2017 Oct 15;42(20):4179-4182. doi: 10.1364/OL.42.004179.
High-average power laser sources delivering intense few-cycle pulses in wavelength regions beyond the near infrared are promising tools for driving the next generation of high-flux strong-field experiments. In this work, we report on nonlinear pulse compression to 34.4 μJ-, 2.1-cycle pulses with 1.4 GW peak power at a central wavelength of 1.82 μm and an average power of 43 W. This performance level was enabled by the combination of a high-repetition-rate ultrafast thulium-doped fiber laser system and a gas-filled antiresonant hollow-core fiber.
在近红外以外的波长区域产生高强度少周期脉冲的高平均功率激光源，是推动下一代高通量强场实验的有前途的工具。在这项工作中，我们报告了在中心波长为1.82μm、平均功率为43W的情况下，实现了非线性脉冲压缩至34.4μJ、2.1周期脉冲，峰值功率为1.4GW。这种性能水平是通过高重复率超快掺铥光纤激光系统和充气反谐振空心光纤的组合实现的。
