We present an ultrafast thin-disk based multipass amplifier operating at a wavelength of 1030 nm, designed for atmospheric research in the framework of the Laser Lightning Rod project. The CPA system delivers a pulse energy of 720 mJ and a pulse duration of 920 fs at a repetition rate of 1 kHz. The 240 mJ seed pulses generated by a regenerative amplifier are amplified to the final energy in a multipass amplifier via four industrial thin-disk laser heads. The beam quality factor remains ∼ 2.1 at the output. First results on horizontal long-range filament generation are presented.

中文翻译：

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具有720 mJ的超快薄盘多通放大器，工作频率为千赫兹重复频率，用于大气研究

我们提出了一种基于超快薄盘的多通道放大器，其工作波长为1030 nm，是在Laser Lightning Rod项目框架内为大气研究而设计的。CPA系统以1 kHz的重复频率提供720 mJ的脉冲能量和920 fs的脉冲持续时间。再生放大器产生的240 mJ种子脉冲通过四个工业薄盘激光头在多通道放大器中放大到最终能量。光束质量因数在输出端保持约2.1。提出了有关水平远程长丝产生的初步结果。