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

Vladimir Toporovsky; Alexis Kudryashov; Vadim Samarkin; Julia Sheldakova; Alexey Rukosuev

doi:10.1117/12.2510144

4 March 2019 Wide aperture high resolution stacked-actuator deformable mirror for high power laser beam correction

Vladimir Toporovsky, Alexis Kudryashov, Vadim Samarkin, Julia Sheldakova, Alexey Rukosuev

Proceedings Volume 10898, High Power Lasers for Fusion Research V; 1089809 (2019) https://doi.org/10.1117/12.2510144
Event: SPIE LASE, 2019, San Francisco, California, United States

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.

Conference Presentation

Citation Download Citation

Vladimir Toporovsky, Alexis Kudryashov, Vadim Samarkin, Julia Sheldakova, and Alexey Rukosuev "Wide aperture high resolution stacked-actuator deformable mirror for high power laser beam correction", Proc. SPIE 10898, High Power Lasers for Fusion Research V, 1089809 (4 March 2019); https://doi.org/10.1117/12.2510144

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