Dr. Aleksandr I. Ryasnyanskiy Profile

Dr. Aleksandr I. Ryasnyanskiy

Senior Engineer at OptiGrate – IPG Photonics

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Author

Publications (15)

Proceedings Article | 17 March 2023 Presentation

200-W tunable ultra-narrow band laser diode systems for spin-exchange optical pumping

Aleksandr Ryasnyanskiy, Oleksiy Mokhun, Vadim Smirnov, Alexei Glebov

Proceedings Volume PC12402, PC1240204 (2023) https://doi.org/10.1117/12.2650866

KEYWORDS: Semiconductor lasers, Laser systems engineering, Optical pumping, Absorption, Rubidium, Magnetic resonance imaging, High power lasers, Xenon, Tunable lasers, Tissues

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Proceedings Article | 1 April 2022 Presentation

Laser diode emission bandwidth tuning with TCBG

Aleksandr Ryasnyanskiy, Vadim Smirnov, Ruslan Vasilyeu, Alexei Glebov

Proceedings Volume PC11982, PC1198208 (2022) https://doi.org/10.1117/12.2607599

KEYWORDS: Semiconductor lasers, Tunable diode lasers, Bragg gratings

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Proceedings Article | 14 March 2018 Presentation

New generation of tunable narrowband laser diode systems for SEOP and DPAL (Conference Presentation)

Aleksandr Ryasnyanskiy, Lawrence Chase, Oleksiy Mokhun, Vadim Smirnov, Alexei Glebov

Proceedings Volume 10513, 105130J (2018) https://doi.org/10.1117/12.2293094

KEYWORDS: Semiconductor lasers, Laser systems engineering, Optical pumping, Fiber Bragg gratings, Gas lasers, Absorption, Packaging, Glasses, Diodes, Alkali vapor lasers

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Proceedings Article | 21 April 2017 Presentation

Ultra-narrow band diode lasers with arbitrary pulse shape modulation (Conference Presentation)

Aleksandr Ryasnyanskiy, Vadim Smirnov, Oleksiy Mokhun, Alexei Glebov, Leon Glebov

Proceedings Volume 10085, 100850H (2017) https://doi.org/10.1117/12.2253756

KEYWORDS: Laser systems engineering, Semiconductor lasers, Pulsed laser operation, Fiber Bragg gratings, Optical pumping, Gas lasers, Continuous wave operation, Signal to noise ratio, Modulation, Glasses

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Proceedings Article | 17 February 2017 Presentation + Paper

Wavelength tunable dual channel solid state laser for terahertz difference frequency generation

Evan Hale, Aleksandr Ryasnyanskiy, George Venus, Ivan Divliansky, Konstantin Vodopyanov, Leonid Glebov

Proceedings Volume 10082, 1008210 (2017) https://doi.org/10.1117/12.2252410

KEYWORDS: Terahertz radiation, Difference frequency generation, Solid state lasers, Gallium arsenide, Resonators, Fiber Bragg gratings, Nonlinear crystals, Crystals, Solid state physics, Spectroscopy, Mirrors, Glasses

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Proceedings Article | 20 February 2015 Paper

Monolithic solid-state lasers for spaceflight

Michael Krainak, Anthony Yu, Mark Stephen, Scott Merritt, Leonid Glebov, Larissa Glebova, Aleksandr Ryasnyanskiy, Vadim Smirnov, Xiaodong Mu, Stephanie Meissner, Helmuth Meissner

Proceedings Volume 9342, 93420K (2015) https://doi.org/10.1117/12.2077812

KEYWORDS: Solid state lasers, Glasses, Laser resonators, Mirrors, Nd:YAG lasers, Fiber lasers, Laser applications, Laser crystals, Reliability, Output couplers

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Proceedings Article | 23 May 2013 Paper

Ring cavity tunable fiber laser with external transversely chirped Bragg grating

A. Ryasnyanskiy, V. Smirnov, L. Glebova, O. Mokhun, E. Rotari, A. Glebov, L. Glebov

Proceedings Volume 8733, 87330X (2013) https://doi.org/10.1117/12.2015531

KEYWORDS: Fiber lasers, Fiber Bragg gratings, Laser systems engineering, Output couplers, Mirrors, Semiconductor lasers, Ytterbium, Laser stabilization, Continuous wave operation, Laser applications

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Proceedings Article | 8 May 2012 Paper

Single frequency fiber laser for external volume Bragg resonator

A. Ryasnyanskiy, N. Vorobiev, V. Smirnov, J. Lumeau, L. Glebova, O. Mokhun, E. Rotari, C. Spiegelberg, A. Podvyaznyy, L. Glebov

Proceedings Volume 8385, 838503 (2012) https://doi.org/10.1117/12.923686

KEYWORDS: Fiber lasers, Q switching, Fiber Bragg gratings, Fabry–Perot interferometers, Glasses, Scattering, Q switches, Pulsed laser operation, Resonators, Laser scattering

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Proceedings Article | 7 February 2012 Paper

Longitudinal mode selection in laser cavity by moiré volume Bragg grating

Daniel Ott, Vasile Rotar, Julien Lumeau, Sergiy Mokhov, Ivan Divliansky, Aleksandr Ryasnyanskiy, Nikolai Vorobiev, Vadim Smirnov, Christine Spiegelberg, Leonid Glebov

Proceedings Volume 8236, 823621 (2012) https://doi.org/10.1117/12.909465

KEYWORDS: Fiber Bragg gratings, Laser resonators, Fabry–Perot interferometers, Optical filters, Modulation, Phase shifts, Glasses, Refractive index, Diffraction gratings, Continuous wavelet transforms

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Proceedings Article | 19 May 2006 Paper

Analysis of third-order nonlinear susceptibilities of quadratic nonlinear-optical crystals

Ilya Kulagin, Rashid Ganeev, Renat Tugushev, Alexander Ryasnyansky, Timurbek Usmanov

Proceedings Volume 6257, 62570F (2006) https://doi.org/10.1117/12.677980

KEYWORDS: Crystals, Nonlinear crystals, Polarization, Transmittance, Laser crystals, Absorption, Birefringence, Refractive index, Information operations, Diffraction

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Proceedings Article | 19 May 2006 Paper

Off-axis Z-scan technique for investigation of nonlinear refraction: aperture size effect

Aleksandr Ryasnyanskiy

Proceedings Volume 6257, 62570C (2006) https://doi.org/10.1117/12.677965

KEYWORDS: Refraction, Transmittance, Nonlinear optics, Absorption, Refractive index, Sensors, Computer simulations, Optics, Physics, Optoelectronics

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Proceedings Article | 1 September 2004 Paper

Nonlinear refraction, nonlinear absorption, and optical limiting in BSO and BGO photorefractive crystals

Aleksandr Ryasnyanskiy

Proceedings Volume 5460, (2004) https://doi.org/10.1117/12.540654

KEYWORDS: Absorption, Crystals, Nonlinear crystals, Nonlinear optics, Optical limiting, Refraction, Refractive index, Solids, Laser crystals, Bismuth

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Proceedings Article | 12 September 2003 Paper

Nonlinear refractive indices and third-order susceptibilities of nonlinear optical crystals

Ilya Kulagin, Rashid Ganeev, Valery Kim, Alexander Ryasnyansky, Renat Tugushev, Timurbek Usmanov, Alexander Zinoviev

Proceedings Volume 4972, (2003) https://doi.org/10.1117/12.478999

KEYWORDS: Crystals, Nonlinear crystals, Absorption, Refractive index, Ferroelectric materials, Polarization, Phase shifts, Paraxial approximations, Diffraction, Transmittance

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Proceedings Article | 26 June 2001 Paper

Investigation of nonlinear optical parameters of metal composites by Z-scan technique

Alexander Ryasnyansky, Rashid Ganeev, Shavkat Kamalov, M. Kodirov, Timurbek Usmanov

Proceedings Volume 4423, (2001) https://doi.org/10.1117/12.431237

KEYWORDS: Gold, Absorption, Refractive index, Metals, Silver, Copper, Platinum, Particles, Nonlinear optics, Plasma

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Proceedings Article | 29 November 2000 Paper

Difference frequency generation in organic vapors

Rashid Ganeev, Shavkat Kamalov, M. Kodirov, M. Milikov, Alexander Ryasnyansky, Renat Tugushev, Sh. Umidullaev, Timurbek Usmanov

Proceedings Volume 4106, (2000) https://doi.org/10.1117/12.408532

KEYWORDS: Difference frequency generation, Harmonic generation, Frequency conversion, Nd:YAG lasers, Molecules, Picosecond phenomena, Ultraviolet radiation, Systems modeling, Chemical species, Electrons

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Showing 5 of 15 publications

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