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Title

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

Authors
Herkommer, Clemens
Krötz, Peter
Jung, Robert
Klingebiel, Sandro
Wandt, Christoph
Bessing, Robert
Walch, Pierre
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Published in Optics Express. 2020, vol. 28, no. 20, 30164
Abstract We present an ultrafast thin-disk based multi pass 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.
Keywords LaserFemtosecondeFilamentFilamentation
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Research group Groupe Wolf
Project H2020: LLR
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HERKOMMER, Clemens et al. Ultrafast thin-disk multipass amplifier with 720 mJ operating at kilohertz repetition rate for applications in atmospheric research. In: Optics Express, 2020, vol. 28, n° 20, p. 30164. doi: 10.1364/OE.404185 https://archive-ouverte.unige.ch/unige:142018

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Deposited on : 2020-09-28

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