Large-aperture adaptive optical system for correcting wavefront distortions of a petawatt Ti : sapphire laser beam
Autor: | V.V. Samarkin, A.G. Alexandrov, I.V. Galaktionov, A.V. Kudryashov, A.N. Nikitin, A.L. Rukosuev, V.V. Toporovsky, Yu.V. Sheldakova |
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Rok vydání: | 2022 |
Předmět: | |
Zdroj: | Quantum Electronics. 52:187-194 |
ISSN: | 1468-4799 1063-7818 |
Popis: | This paper reports a large-aperture adaptive optical system with a bimorph deformable mirror and Shack – Hartmann wavefront sensor for aberration correction and beam focusing improvement in state-of-the-art petawatt Ti : sapphire lasers. We consider methods for providing feedback to the wavefront sensor and obtaining an objective wavefront that optimises beam focusing onto a target. The use of an adaptive system with a controlled 127-channel 320-mm-aperture mirror in a Ti : sapphire laser with an output power of 4.2 PW has made it possible to obtain a record high laser beam intensity: 1.1 × 1023 W cm−2. |
Databáze: | OpenAIRE |
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