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Proceedings Paper

Wide aperture high resolution stacked-actuator deformable mirror for high power laser beam correction
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Paper Abstract

Thermal effects in the active laser medium influence on the quality of the laser beam in high-power laser systems. Temperature fluctuations lead to refractive index modulation in the medium, thus the intensity of the radiation is significantly reduced. Historically, to solve this task an adaptive optics technique is used. It allows to compensate for the wavefront aberrations. Stacked-actuator deformable mirror is a traditional technology that is used in order to improve the quality of the incident wavefront. This type of wavefront correctors has one significant shortcoming – the impossibility of the replacement of broken actuators. We developed a stacked-actuator deformable mirror with aperture of 120 mm and 121 control actuators to correct for the high-power laser radiation. Actuator arrangement was hexagonal. In our design, the broken piezoactuators could be easily replaced.

Paper Details

Date Published: 4 March 2019
PDF: 12 pages
Proc. SPIE 10898, High Power Lasers for Fusion Research V, 1089809 (4 March 2019); doi: 10.1117/12.2510144
Show Author Affiliations
Vladimir Toporovsky, Moscow Polytechnic Univ. (Russian Federation)
Alexis Kudryashov, Moscow Polytechnic Univ. (Russian Federation)
Institute of Geosphere Dynamics (Russian Federation)
Vadim Samarkin, Institute of Geosphere Dynamics (Russian Federation)
Julia Sheldakova, Institute of Geosphere Dynamics (Russian Federation)
Alexey Rukosuev, Institute of Geosphere Dynamics (Russian Federation)

Published in SPIE Proceedings Vol. 10898:
High Power Lasers for Fusion Research V
Abdul A. S. Awwal; Constantin L. Haefner, Editor(s)

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