Dr. Alexander B. Alexandrov Profile

Dr. Alexander B. Alexandrov

SPIE Involvement:

Author

Publications (33)

Proceedings Article | 12 March 2024 Poster + Paper

Beam-path alignment system for high-power laser setups

Vladimir Toporovsky, Ilya Galaktionov, Alexander Alexandrov, Alexis Kudryashov, Julia Sheldakova

Proceedings Volume 12871, 128710N (2024) https://doi.org/10.1117/12.3023351

KEYWORDS: Cameras, Wavefronts, High power lasers, Semiconductor lasers, Near field, Kinematics, Laser radiation, Wavefront sensors, Near field optics, Mirrors

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Proceedings Article | 26 September 2023 Poster + Paper

Software and hardware implementation of the algorithm for 2-mirrors automatic laser beam alignment system

Ilya Galaktionov, Vladimir Toporovsky, Alexander Nikitin, Alexey Rukosuev, Alex Alexandrov, Julia Sheldakova, Alexander Laskin, Alexis Kudryashov

Proceedings Volume 12667, 126670I (2023) https://doi.org/10.1117/12.2676742

KEYWORDS: Near field, Automatic alignment, Wavefront sensors, Control systems, Laser systems engineering, Wavefronts, Sensors, Mirrors, Algorithm development, Reflection

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Proceedings Article | 4 March 2022 Presentation + Paper

FPGA based laser beam stabilization system

Julia Sheldakova, Ilya Galaktionov, Alexander Nikitin, Alexander Alexandrov, Alexis Kudryashov, Vadim Belousov, Alexey Rukosuev

Proceedings Volume 11987, 119870C (2022) https://doi.org/10.1117/12.2614525

KEYWORDS: Field programmable gate arrays, Mirrors, Photodiodes, Data communications, Zernike polynomials, Wavefronts, Laser systems engineering, Turbulence, Data conversion, Wavefront sensors

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Proceedings Article | 4 March 2022 Presentation + Paper

Wide-aperture deformable mirror for correcting and improving focusing of multi-petawatt Ti:Sa laser beam

Vladimir Toporovsky, Vadim Samarkin, Alexis Kudryashov, Alexander Alexandrov, Ilya Galaktionov, Alexander Nikitin, Alexey Rukosuev, Julia Sheldakova

Proceedings Volume 11987, 119870F (2022) https://doi.org/10.1117/12.2614522

KEYWORDS: Mirrors, Electrodes, Deformable mirrors, Wavefronts, Distortion, Optical amplifiers, Zernike polynomials, Wavefront sensors, Phase shifts, Optical components

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Proceedings Article | 6 June 2021 Paper

Water-cooled deformable mirrors for high power beam correction

Vadim Samarkin, Alexander Alexandrov, Vladimir Toporovsky, Aleksei Rukosuev, Alexis Kudryashov

Proceedings Volume 11849, 1184917 (2021) https://doi.org/10.1117/12.2599116

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Proceedings Article | 5 March 2021 Presentation + Paper

240-mm bimorph deformable mirror for wavefront correction at the PEARL facility

Alexis Kudryashov, Alexander Alexandrov, Ilya Galaktionov, Efim Khazanov, Anton Kochetkov, Alexander Kotov, Sergey Perevalov, Vadim Samarkin, Andrey Shaykin, Alexander Soloviev

Proceedings Volume 11672, 116720V (2021) https://doi.org/10.1117/12.2578070

KEYWORDS: Wavefronts, Deformable mirrors, Wavefront sensors, Distortion

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Proceedings Article | 6 September 2017 Paper

Fast adaptive optical system for the high-power laser beam correction in atmosphere

Alexis Kudryashov, Anna Lylova, Vadim Samarkin, Julia Sheldakova, Alexander Alexandrov

Proceedings Volume 10410, 104100L (2017) https://doi.org/10.1117/12.2276177

KEYWORDS: Deformable mirrors, Wavefront sensors, Mirrors, Actuators, Atmospheric turbulence, Electrodes, Turbulence, Atmospheric corrections, Cameras, Atmospheric propagation

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Proceedings Article | 23 February 2017 Presentation + Paper

Extremely large bimorph deformable mirror for high intense laser beam correction

Alexis Kudryashov, Vadim Samarkin, Alex Aleksandrov, Gilles Borsoni, Takahisa Jitsuno, Pavel Romanov, Julia Sheldakova

Proceedings Volume 10084, 1008408 (2017) https://doi.org/10.1117/12.2257461

KEYWORDS: Mirrors, Deformable mirrors, Wavefront sensors, Sensors, High power lasers, Electrodes, Actuators, Glasses, Coating, Manufacturing, Wavefront distortions

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Proceedings Article | 20 February 2017 Presentation + Paper

Beam shaping by means of different wavefront correctors

Julia Sheldakova, Alexis Kudryashov, Anna Lylova, Vadim Samarkin, Alexander Alexandrov

Proceedings Volume 10090, 100901S (2017) https://doi.org/10.1117/12.2257448

KEYWORDS: Beam shaping, Mirrors, Wavefronts, Wavefront sensors, Sensors, Adaptive optics, Deformable mirrors, Beam controllers, Actuators, Monochromatic aberrations, CCD cameras, Electrodes, Zernike polynomials

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Proceedings Article | 7 March 2014 Paper

Wide aperture (more than 500 mm) deformable mirrors for high power laser beam correction

Alexis Kudryashov, Vadim Samarkin, Alexander Alexandrov, Julia Sheldakova, Pavel Romanov

Proceedings Volume 8960, 89601G (2014) https://doi.org/10.1117/12.2046497

KEYWORDS: Mirrors, Electrodes, Surface finishing, Deformable mirrors, Actuators, High power lasers, Monochromatic aberrations, Polishing, Ceramics, Carbon dioxide lasers

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Proceedings Article | 12 March 2013 Paper

Extremely high power CO2 laser beam correction

Alexis Kudryashov, Alexander Alexandrov, Alexey Rukosuev, Vadim Samarkin

Proceedings Volume 8600, 860003 (2013) https://doi.org/10.1117/12.2010839

KEYWORDS: Sensors, Wavefront sensors, Infrared cameras, High power lasers, Infrared sensors, Cameras, Carbon dioxide lasers, Wavefronts, Deformable mirrors, Mirrors

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Proceedings Article | 9 February 2012 Paper

New Hartmann wavefront sensor for high power CO2 lasers

Alexis Kudryashov, Alexander Alexandrov, Alexey Rukosuev, Pierre Galarneau

Proceedings Volume 8236, 82360L (2012) https://doi.org/10.1117/12.924118

KEYWORDS: Sensors, Wavefront sensors, Infrared cameras, Infrared sensors, Cameras, High power lasers, Carbon dioxide lasers, Wavefronts, Optical components, Bolometers

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Proceedings Article | 19 February 2011 Paper

Shack-Hartmann wavefront sensor and its problems

Alexis Kudryashov, Valentina Zavalova, Alexey Rukosuev, Alexander Alexandrov, Julia Sheldakova, Vadim Samarkin

Proceedings Volume 7913, 791309 (2011) https://doi.org/10.1117/12.880763

KEYWORDS: Wavefronts, Wavefront sensors, Wavefront aberrations, Sensors, Pulsed laser operation, Laser systems engineering, High power lasers, Monochromatic aberrations, Optical amplifiers, Laser glasses

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Proceedings Article | 30 August 2010 Paper

Multi-dither algorithm on Shack-Hartmann wavefront sensor for laser beam formation

J. Sheldakova, A. Kudryashov, V. Samarkin, A. Rukosuev, A. Alexandrov, P. Romanov

Proceedings Volume 7789, 778912 (2010) https://doi.org/10.1117/12.863966

KEYWORDS: Wavefront sensors, Wavefronts, Electrodes, Mirrors, Phase conjugation, Genetic algorithms, Evolutionary algorithms, Genetics, Sensors, Wavefront aberrations

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Proceedings Article | 18 February 2010 Paper

Multi dither adaptive system based on Shack-Hartmann wavefront sensor

J. Sheldakova, A. Kudryashov, V. Samarkin, A. Alexandrov

Proceedings Volume 7579, 75790I (2010) https://doi.org/10.1117/12.847938

KEYWORDS: Wavefront sensors, Wavefronts, Electrodes, Mirrors, Phase conjugation, Genetic algorithms, Evolutionary algorithms, Genetics, Sensors, Wavefront aberrations

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Proceedings Article | 26 April 2007 Paper

Adaptive optics and high power pulse lasers

Alexis Kudryashov, Alexander Alexandrov, Valentina Zavalova, Alexey Rukosuev, Vadim Samarkin

Proceedings Volume 6346, 634629 (2007) https://doi.org/10.1117/12.738907

KEYWORDS: Wavefront sensors, Electrodes, Wavefronts, Adaptive optics, Mirrors, Deformable mirrors, High power lasers, Pulsed laser operation, Optical components, Sensors

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Proceedings Article | 8 June 2006 Paper

Water-cooled bimorph correctors

Vadim Samarkin, Alexander Aleksandrov, Valeri Dubikovsky, Alexis Kudryashov

Proceedings Volume 6018, 60180Z (2006) https://doi.org/10.1117/12.669365

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Proceedings Article | 28 February 2006 Paper

Adaptive systems for single pulse lasers

Alexis Kudryashov, Alexander Alexandrov, Vadim Samarkin

Proceedings Volume 6101, 610107 (2006) https://doi.org/10.1117/12.674314

KEYWORDS: Wavefront sensors, Electrodes, Wavefronts, Mirrors, Deformable mirrors, Adaptive optics, Pulsed laser operation, Sensors, Optical components, Beam controllers

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Proceedings Article | 12 April 2005 Paper

The use of M2 meter to correct for high-power laser aberrations

Julia Sheldakova, Tatyana Cherezova, Alexander Aleksandrov, Alexey Rukosuev, Alexis Kudryashov

Proceedings Volume 5708, (2005) https://doi.org/10.1117/12.609581

KEYWORDS: Mirrors, Electrodes, Wavefront sensors, Control systems, Genetic algorithms, Wavefronts, High power lasers, Diffraction, Sensors, Charge-coupled devices

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Proceedings Article | 1 June 2004 Paper

High-power lasers and adaptive optics

Alexis Kudryashov, Vadim Samarkin, Alexey Rukosuev, Alexander Alexandrov

Proceedings Volume 5333, (2004) https://doi.org/10.1117/12.538450

KEYWORDS: Mirrors, Wavefront sensors, Wavefronts, Adaptive optics, Electrodes, High power lasers, Deformable mirrors, Monochromatic aberrations, Charge-coupled devices, Laser systems engineering

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Proceedings Article | 10 November 2003 Paper

Adaptive system for high power lasers

Alexander Aleksandrov, A. Rukosuev, V. Zavalova, P. Romanov, V. Samarkin, A. Kudryashov

Proceedings Volume 5120, (2003) https://doi.org/10.1117/12.515426

KEYWORDS: Electrodes, Mirrors, Wavefronts, Wavefront sensors, High power lasers, Wavefront distortions, Control systems, Beam splitters, Deformable mirrors, CCD cameras

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Proceedings Article | 6 October 2003 Paper

Wavefront correction for near diffraction-limited focal spot on a 6x100 J/1-ns laser facility

Julien Fuchs, Benoit Wattellier, Ji Zou, Jean-Christophe Chanteloup, H. Bandulet, P. Michel, C. Labaune, S. Depierreux, Alexis Kudryashov, Alexander Aleksandrov

Proceedings Volume 5137, (2003) https://doi.org/10.1117/12.517964

KEYWORDS: Wavefronts, Mirrors, Adaptive optics, Deformable mirrors, Electrodes, Dielectrics, Wavefront distortions, Diffraction, Glasses, Wavefront sensors

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Proceedings Article | 25 June 2003 Paper

Correction of the aberrations of high-power lasers

Alexis Kudryashov, Vadim Samarkin, Alexey Rukosuev, Alexander Alexandrov

Proceedings Volume 4969, (2003) https://doi.org/10.1117/12.483647

KEYWORDS: Mirrors, Wavefront sensors, Wavefronts, Electrodes, Charge-coupled devices, Adaptive optics, Beam controllers, Control systems, Sensors, Monochromatic aberrations

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Proceedings Article | 25 June 2003 Paper

Multidither adaptive optical system for laser beam shaping

J. Sheldakova, Alexey Rukosuev, Alexander Alexandrov, Alexis Kudryashov

Proceedings Volume 4969, (2003) https://doi.org/10.1117/12.499280

KEYWORDS: Mirrors, Electrodes, Sensors, Wavefronts, Control systems, Adaptive optics, Deformable mirrors, Beam controllers, CCD image sensors, Wavefront sensors

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Proceedings Article | 7 February 2003 Paper

Semipassive bimorph correctors for multipurpose applications

Vadim Samarkin, Alexander Aleksandrov, Alexis Kudryashov

Proceedings Volume 4839, (2003) https://doi.org/10.1117/12.458928

KEYWORDS: Mirrors, Electrodes, Wavefronts, Silicon, Ceramics, Ferroelectric materials, Copper, Monochromatic aberrations, Surface finishing, High power lasers

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Proceedings Article | 24 October 2002 Paper

Adaptive system for laser beam formation

Alexander Alexandrov, Alexey Rukosuev, Valentina Zavalova, Pavel Romanov, Vadim Samarkin, Alexis Kudryashov

Proceedings Volume 4770, (2002) https://doi.org/10.1117/12.459102

KEYWORDS: Mirrors, Wavefront sensors, Wavefronts, Electrodes, Charge-coupled devices, Adaptive optics, Control systems, Sensors, Beam controllers, Monochromatic aberrations

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Proceedings Article | 1 February 2002 Paper

Bimorph mirrors for powerful laser beam correction and formation

Vadim Samarkin, Alexander Alexandrov, Alexis Kudryashov

Proceedings Volume 4493, (2002) https://doi.org/10.1117/12.454722

KEYWORDS: Mirrors, Electrodes, Silicon, Ceramics, Monochromatic aberrations, Ferroelectric materials, Wavefronts, Surface finishing, Copper, Polishing

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Proceedings Article | 1 February 2002 Paper

Adaptive optical system based on bimorph mirror and Shack-Hartmann wavefront sensor

Alexey Rukosuev, Alexander Alexandrov, Valentina Zavalova, Vadim Samarkin, Alexis Kudryashov

Proceedings Volume 4493, (2002) https://doi.org/10.1117/12.454721

KEYWORDS: Mirrors, Wavefront sensors, Wavefronts, Electrodes, Charge-coupled devices, Adaptive optics, Control systems, Sensors, Beam controllers, Monochromatic aberrations

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Proceedings Article | 8 November 2001 Paper

Adaptive optical elements for laser beam control

Alexis Kudryashov, Vadim Samarkin, Alexander Aleksandrov

Proceedings Volume 4457, (2001) https://doi.org/10.1117/12.447751

KEYWORDS: Mirrors, Electrodes, Silicon, Ceramics, Ferroelectric materials, Monochromatic aberrations, Surface finishing, Wavefronts, Optical components, Optical coatings

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Proceedings Article | 24 April 2001 Paper

Closed-loop adaptive system for laser beam control

Alexis Kudryashov, Alexey Rukosuev, Alexander Alexandrov, Valentina Zavalova, Vadim Samarkin

Proceedings Volume 4270, (2001) https://doi.org/10.1117/12.424676

KEYWORDS: Mirrors, Wavefronts, Electrodes, Control systems, Wavefront sensors, Beam controllers, Charge-coupled devices, Sensors, Adaptive optics, Monochromatic aberrations

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Proceedings Article | 23 August 1995 Paper

Signal processing for large active synthetic aperture experimental optics system

Alexander Alexandrov, Pavel Inshin

Proceedings Volume 2566, (1995) https://doi.org/10.1117/12.217373

KEYWORDS: Receivers, Holograms, Signal processing, Correlation function, Spatial resolution, Image quality, Interference (communication), Signal to noise ratio, Statistical analysis, Photodetectors

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SPIE Journal Paper | 1 October 1994

Experimental adaptive optics system

Alexander Alexandrov, Pavel Inshin, Vjatcheslav Tyapin

OE, Vol. 33, Issue 10, (October 1994) https://doi.org/10.1117/12.10.1117/12.178897

KEYWORDS: Adaptive optics, Modulators, Deformable mirrors, Photodetectors, Image quality, Signal processing, Power supplies, Control systems, Eye, Sensors

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Proceedings Article | 31 May 1994 Paper

Experimental adaptive optics system

Alexander Alexandrov, Pavel Inshin, Vjatcheslav Tyapin

Proceedings Volume 2201, (1994) https://doi.org/10.1117/12.176049

KEYWORDS: Adaptive optics, Modulators, Mirrors, Astronomy, Sensors, Control systems, Photodetectors, Ions, Image quality, Eye

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Showing 5 of 33 publications

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