High-energy laser pulses at 1064 nm with complex temporal shapes

Randy A. Meijer, Aneta Stodolna, Stefan Witte, Kjeld S.E. Eikema

Research output: Chapter in Book / Report / Conference proceedingConference contributionAcademicpeer-review

Abstract

Laser pulses are a powerful tool for inducing a large diversity of dynamical phenomena in matter. Control over the temporal shape of light pulses therefore also provides a means to control such dynamics on a wide range of timescales. Our aim is to improve control over laser-produced plasmas (LPP) and its short-wavelength emission characteristics, where plasma dynamics at nanosecond (ns) timescales play an important role. To investigate and control such dynamics, we need to combine GHz bandwidth pulse shaping capabilities with high pulse energies. The development of fast, compact, integrated electro-optic modulators (EOM) has made arbitrary temporal shaping at GHz speed accessible [1, 2]. However, the penalty for their fast modulation speed is a low power threshold, usually in the mW regime. Therefore, to enable fast temporal shaping of high-energy laser pulses, amplification after shaping is necessary. Here we present a laser system capable of delivering arbitrary shaped pulses with 0.5 ns temporal resolution and up to 440 mJ of pulse energy at 1064 nm wavelength and 100 Hz repetition rate. A grazing incidence amplifier utilizing Nd:YVO 4 crystals pumped at 880 nm [3] is seeded by a modulated 2W CW laser. Further amplification is obtained by utilizing a quasi-CW diode-pumped Nd:YAG power amplifier. A schematic of the full setup is shown in Figure 1a.
Original languageEnglish
Title of host publication2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)
Subtitle of host publication[Proceedings]
PublisherIEEE
Number of pages1
ISBN (Electronic)9781509067367
ISBN (Print)9781509067374
DOIs
Publication statusPublished - 2017
EventThe European Conference on Lasers and Electro-Optics, CLEO_Europe 2017 - Munich, Germany
Duration: 25 Jun 201729 Jun 2017

Publication series

NameOptics InfoBase Conference Papers
VolumePart F82-CLEO_Europe 2017
ISSN (Electronic)2162-2701

Conference

ConferenceThe European Conference on Lasers and Electro-Optics, CLEO_Europe 2017
Country/TerritoryGermany
CityMunich
Period25/06/1729/06/17

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