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Ultrafast thin-disk multipass amplifier with 720 mJ operating at kilohertz repetition rate for applications in atmospheric research

Abstract : 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.
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Submitted on : Wednesday, October 7, 2020 - 5:14:39 PM
Last modification on : Friday, October 9, 2020 - 3:33:19 AM

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Clemens Herkommer, Peter Krötz, Robert Jung, Sandro Klingebiel, Christoph Wandt, et al.. Ultrafast thin-disk multipass amplifier with 720 mJ operating at kilohertz repetition rate for applications in atmospheric research. Optics Express, Optical Society of America - OSA Publishing, 2020, 28 (20), pp.30164. ⟨10.1364/OE.404185⟩. ⟨hal-02960475⟩

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