Pulses of 32 mJ and 158 fs at 20-kHz repetition rate from a spatiotemporally combined fiber laser system-Reference-Cited by-同舟云学术

Pulses of 32 mJ and 158 fs at 20-kHz repetition rate from a spatiotemporally combined fiber laser system

Published:2023-05-28 Issue:11 Volume:48 Page:3007
ISSN:0146-9592
Container-title:Optics Letters
language:en
Short-container-title:Opt. Lett.

Author:

Stark Henning¹²^ORCID,Benner Maximilian¹^ORCID,Buldt Joachim¹^ORCID,Klenke Arno¹³⁴^ORCID,Limpert Jens¹²³⁴

Affiliation:

1. Friedrich Schiller University Jena

2. Fraunhofer Institute for Applied Optics and Precision Engineering

3. Helmholtz-Institute Jena

4. GSI Helmholtzzentrum für Schwerionenforschung

Abstract

A high-energy, high-power ultrafast fiber laser system based on spatiotemporal coherent combination is presented. Bursts of eight subsequent chirped-pulse amplification (CPA)-stretched pulses are amplified simultaneously in 16 parallel ytterbium-doped rod-type amplifiers. After spatial and temporal coherent combination of the total 128 amplified pulse replicas into a single pulse, it is compressed in a partially protective-gas-filled CPA compressor. Finally, nearly Fourier-transform-limited pulses with an energy of 32 mJ and a duration of 158 fs are emitted with a repetition rate of 20 kHz and a close to diffraction-limited beam quality.

Funder

European Research Council

Fraunhofer-Gesellschaft

Bundesministerium für Bildung und Forschung

Publisher

Optica Publishing Group

Subject

Atomic and Molecular Physics, and Optics

Reference22 articles.

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