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

0545989 - FZÚ 2022 RIV US eng J - Článek v odborném periodiku
Körner, J. - Zulic, Sanin - Reiter, J. - Lenski, M. - Hein, J. - Bödefeld, R. - Rostohar, D. - Mocek, T. - Kaluza, M.C.
Compact, diode-pumped, unstable cavity Yb:YAG laser and its application in laser shock peening.
Optics Express. Roč. 29, č. 10 (2021), s. 15724-15732. ISSN 1094-4087
Grant CEP: GA MŠMT EF15_006/0000674
GRANT EU: European Commission(XE) 739573 - HiLASE CoE; European Commission(XE) 654148 - LASERLAB-EUROPE
Grant ostatní: OP VVV - HiLASE-CoE(XE) CZ.02.1.01/0.0/0.0/15_006/0000674
Institucionální podpora: RVO:68378271
Klíčová slova: Yb:YAG laser * laser shock peening
Obor OECD: Optics (including laser optics and quantum optics)
Impakt faktor: 3.833, rok: 2021
Způsob publikování: Open access

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.
Trvalý link: http://hdl.handle.net/11104/0322668