Adaptive Correction of a High-Power Titanium-Sapphire Laser Radiation

Author: Aleksandrov A.   Zavalova V.   Kudryashov A.   Rukosuev A.   Samarkin V.  

Publisher: Springer Publishing Company

ISSN: 0021-9037

Source: Journal of Applied Spectroscopy, Vol.72, Iss.5, 2005-09, pp. : 744-750

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Abstract

An adaptive optical closed-loop feedback system based on a phase-conjugation algorithm has been developed and investigated. It includes a deformable bimorph mirror and a Shack-Hartmann wavefront sensor. This system was used to improve the radiation focusing in an ultrashort-pulse laser designed for basic research in the field of high-energy physics. With the indicated system, the power density of 10-TW radiation pulses in the focal plane of a Ti:Al2O3 laser reached 4 ⋅ 1019 W/cm2.