Compact, diode-pumped, unstable cavity Yb:YAG laser and its application in laser shock peening
| Autor: | M. Lenski, Joachim Hein, Jürgen Reiter, Jörg Körner, Sanin Zulić, Malte C. Kaluza, Tomas Mocek, Danijela Rostohar, R. Bödefeld |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Amplified spontaneous emission
Materials science business.industry Physics::Optics Peening 02 engineering and technology Laser pumping 021001 nanoscience & nanotechnology Laser 01 natural sciences Atomic and Molecular Physics and Optics Shock (mechanics) law.invention 010309 optics Optics Residual stress law 0103 physical sciences ddc:530 Physics::Atomic Physics 0210 nano-technology business Beam (structure) Diode |
| Zdroj: | Optics express 29(10), 15724 (2021). doi:10.1364/OE.423386 |
| DOI: | 10.1364/OE.423386 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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