Compact, diode-pumped, unstable cavity Yb:YAG laser and its application in laser shock peening

Jörg Körner, Sanin Zulić, Jürgen Reiter, Mathias Lenski, Joachim Hein, Ragnar Bödefeld, Danijela Rostohar, Tomáš Mocek, Malte C. Kaluza

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)
28 Downloads (Pure)

Abstract

We present the setup of a compact, q-switched, cryogenically cooled Yb:YAG laser, which is capable of producing over 1 J output energy in a 10 ns pulse at 10 Hz. The system's design is based on the recently published unstable cavity layout with gain shaping of the spatial intra-cavity intensity distribution. Using a hexagonal homogenized pump beam, the laser generated an according hexagonal output beam profile. The suitability of such laser properties for the intended use in a laser shock peening process is demonstrated. In the experiment an aluminum plate was treated and the generated residual stresses in the sample subsequently measured. Other applications of this laser system like laser pumping or surface cleaning are conceivable.

Original languageEnglish
Article number423386
Pages (from-to)15724-15732
Number of pages9
JournalOptics Express
Volume29
Issue number10
DOIs
Publication statusPublished - 7 May 2021
Externally publishedYes

Bibliographical note

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Funder

European Regional Development Fund (CZ.02.1.01/0.0/0.0/15_006/ 0000674); Horizon 2020 Framework Programme (739573); Thüringer Ministerium für Wirtschaft, Wissenschaft und Digitale Gesellschaft (2016FE9058); Laserlab-Europe (654148); Bundesministerium für Bildung und Forschung (03VNE2068D, 03Z1H531, 03ZIK445, 05P15SJFA1).

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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