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arXiv 2108.06244physics.optics
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平均功率为55 W时薄圆盘振荡器的有效非线性压缩至8.5 fs

Efficient nonlinear compression of a thin-disk oscillator to 8.5 fs at 55 W average power

G. Barbiero, H. Wang, M. Graßl, S. Gröbmeyer, D. Kimbaras, M. Neuhaus, V. Pervak, T. Nubbemeyer, H. Fattahi, M. F. Kling

摘要:

我们展示了一个有效的混合方案的非线性脉冲压缩的高功率薄盘振荡器脉冲的子10 fs制度。自制的16 MHz,84 W,220 fs Yb:YAG薄片振荡器的1030 nm输出在两个非线性多程池中被压缩到17 fs。在第三阶段,基于多个薄蓝宝石板,进一步压缩到8.5 fs,55 W输出功率和65%的总光学效率被实现。通过将2.5周期脉冲发送到碘酸锂晶体中,我们能够产生覆盖光谱范围2.4-8 $μ$ m的超宽带中红外脉冲。

英文摘要:

We demonstrate an efficient hybrid-scheme for nonlinear pulse compression of high-power thin-disk oscillator pulses to the sub-10 fs regime. The output of a home-built, 16 MHz, 84 W, 220 fs Yb:YAG thin-disk oscillator at 1030 nm is first compressed to 17 fs in two nonlinear multipass cells. In a third stage, based on multiple thin sapphire plates, further compression to 8.5 fs with 55 W output power and an overall optical efficiency of 65% is achieved. By sending the 2.5-cycle pulses into a lithium iodate crystal, we were able to generate ultra-broadband mid-infrared pulses covering the spectral range 2.4-8 $μ$m.

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