Focusing DOEs (focusators): design and investigation

Данилов, В. А.

doi:10.1109/itnt49337.2020.9253327

Cited by 7 publications

(1 citation statement)

References 112 publications

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“…To manipulate the properties of the laser beam (intensity distribution, focusability, phase distortions compensation) a lot of techniques could be used: hardware (like focusators [1] , shapers [2,3] , adaptive optics methods [4][5][6][7][8] ), software (luckyimaging [9][10][11] , global processing [12] ) or using both techniques (for example, phase diversity [13,14] ). Main goal of using such devices or methods is mitigate undesirable effects on the laser beam propagated over distance.…”

Section: Introductionmentioning

confidence: 99%

Cartridge-type piezostack deformable mirror with reduced cross-section of control elements

Toporovsky,

Galaktionov,

Samarkin

et al. 2023

Laser Beam Shaping XXIII

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The reduction of cross-sectional area of actuators from 4*4 mm2 to 2*2 mm2 in cartridge-type piezostack deformable mirror was investigated. Harmonic analysis showed that stroke of the actuators with 16 mm2 and 4 mm2 was equal 5.33 and 5.52 microns correspondingly in case of interdigital commutation of layers. However, the mechanical stiffness of such actuators was low. To increase robustness of wavefront corrector a gap structure for inner electrode configuration was used. The piezoceramic cartridges with cross-sectional area of individual actuator with 2*2 mm2 was produced. The local stroke of single piezostack was 4.6-4.8 microns per 300 V.

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