Mr. Viatcheslav Litvinovitch Profile

Viatcheslav Litvinovitch

Principal Mechanical Engineer at Fibertek Inc

SPIE Involvement:

Author

Publications (23)

Proceedings Article | 4 March 2022 Presentation + Paper

Compact and lightweight space-qualifiable LIDAR transmitter

Evan Hale, Moran Chen, Bruce McIntosh, Joe Hansell, Khoa Le, Slava Litvinovitch, Nicholas Sawruk

Proceedings Volume 11982, 1198205 (2022) https://doi.org/10.1117/12.2609943

KEYWORDS: Transmitters, LIDAR, Oscillators, Pulsed laser operation, Laser optics, Computer aided design, Solid modeling, Electro optical modeling, Thermography, Systems engineering

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Proceedings Article | 4 March 2022 Presentation + Paper

Uplink laser assembly for the deep space optical communications payload aboard NASA's Psyche Asteroid Mission

Gregory Nau, Rajesh Kadel, Dave Pachowicz, Doruk Engin, Juan Landers, Slava Litvinovitch, Selma Tint, Mark Long, Dave Moll, Mark Storm

Proceedings Volume 11993, 119930F (2022) https://doi.org/10.1117/12.2609821

KEYWORDS: Optical communications, Fiber lasers, Modulation, Space operations, Pulsed laser operation, Astronomical imaging, Collimators, Asteroids, Control systems, Ytterbium

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Proceedings Article | 5 March 2021 Presentation + Paper

50W, 1.5um, 8 WDM (25nm) channels PPM downlink Tx for deep space lasercom

Doruk Engin, Slava Litvinovitch, Chad Gilman, He Cao, Ted Wysocki, Bruce McIntosh, Joe Rudd, Jacob Hwang, David Pachowicz, Keith Petrillo, Nicholas Sawruk, Andrew Schober, Mark Storm

Proceedings Volume 11678, 116780K (2021) https://doi.org/10.1117/12.2577276

KEYWORDS: Wavelength division multiplexing, Optical amplifiers, High power fiber amplifiers, Transmitters, Fiber amplifiers, Telecommunications, Prototyping, Vibrometry, Time division multiplexing

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Proceedings Article | 2 March 2020 Paper

50W, 1.5um, 8 WDM (25nm) channels PPM downlink Tx for deep space lasercom

Doruk Engin, Slava Litvinovitch, David Pachowics, Jacob Hwang, Chad Gilman, He Cao, Keith Petrillo, Mark Storm, Malcolm Wright

Proceedings Volume 11272, 112720V (2020) https://doi.org/10.1117/12.2543905

KEYWORDS: Wavelength division multiplexing, Optical amplifiers, Transmitters, Fiber amplifiers, Electronics, Reliability, Diodes, Fiber lasers, Channel projecting optics, High power fiber amplifiers

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Proceedings Article | 25 February 2020 Presentation + Paper

High power thulium fiber laser systems for airborne and spaceborne missions

Doruk Engin, William Rudd, Mark Storm, Mark Long, Viatcheslav Litvinovitch, Lawrence Holley, Nicholas Sawruk

Proceedings Volume 11261, 112610O (2020) https://doi.org/10.1117/12.2547955

KEYWORDS: Laminated object manufacturing, Fiber lasers, YAG lasers, Laser systems engineering, LIDAR, Laser optics, Temperature metrology, Oscillators, Space operations, Laser development

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Proceedings Article | 2 May 2019 Presentation + Paper

Er:YAG methane lidar laser technology

Moran Chen, Willian Rudd, Joe Hansell, David Pachowicz, Slava Litvinovitch, Patrick Burns, Nicholas Sawruk

Proceedings Volume 11005, 110050Q (2019) https://doi.org/10.1117/12.2519429

KEYWORDS: Methane, Er:YAG lasers, LIDAR, Laser applications, Pulsed laser operation, Field programmable gate arrays, Laser systems engineering, Servomechanisms, Resonators

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Proceedings Article | 5 March 2019 Paper

CubeSat lasercom optical terminals for near-Earth to deep space communications

Brian Mathason, Michael Albert, Doruk Engin, He Cao, Keith Petrillo, Jacob Hwang, Khoa Le, Kent Puffenberger, Slava Litvinovitch, Mark Storm, Richard Utano

Proceedings Volume 10910, 1091005 (2019) https://doi.org/10.1117/12.2508047

KEYWORDS: Laser optics, Laser communications, Satellites, Optical communications, Laser development, Telecommunications, Sensors, Space operations, Satellite communications, Data communications

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Proceedings Article | 4 March 2019 Paper

Spaceflight 100W, 1940nm polarization maintaining Tm doped fiber laser for pumping Q-switched 2um Ho:YLF

Doruk Engin, Slava Litvinovitch, Mark Long, He Cao, Mark Storm

Proceedings Volume 10899, 108990H (2019) https://doi.org/10.1117/12.2507905

KEYWORDS: Fiber lasers, Diodes, Laminated object manufacturing, Laser packaging, Reliability, Laser development, Electronics, Thulium, LIDAR, Optical amplifiers

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Proceedings Article | 24 October 2018 Paper

Lifetime testing of a 355-nm, space-qualifiable laser

Fran Fitzpatrick, Joe Rudd, Michael Albert, Kent Puffenburger, Tom Schum, Slava Litvinovitch, Darrell Jones, Floyd Hovis

Proceedings Volume 10779, 1077908 (2018) https://doi.org/10.1117/12.2325015

KEYWORDS: Ultraviolet radiation, LIDAR, Diodes, Contamination, Laser applications, Laser development, UV optics

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Proceedings Article | 20 February 2018 Presentation + Paper

ICESat-2 laser Nd:YVO4 amplifier

Nicholas Sawruk, Patrick Burns, Ryan Edwards, Viatcheslav Litvinovitch, Nigel Martin, Greg Witt, Elias Fakhoury, John Iskander, Mark Pronko, Elisavet Troupaki, Michael Bay, Charles He, Liqin Wang, John Cavanaugh, Babak Farrokh, Jonathan Salem, Eric Baker

Proceedings Volume 10513, 105130X (2018) https://doi.org/10.1117/12.2292256

KEYWORDS: Crystals, Indium, Optical amplifiers, Laser crystals, Gold, Amplifiers, Interfaces, 3D modeling, Laser systems engineering, Thermal modeling

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Proceedings Article | 30 August 2017 Presentation + Paper

Compact, highly efficient, single-frequency 25W, 2051nm Tm fiber-based MOPA for CO2 trace-gas laser space transmitter

Doruk Engin, Ti Chuang, Slava Litvinovitch, Mark Storm

Proceedings Volume 10406, 1040606 (2017) https://doi.org/10.1117/12.2276339

KEYWORDS: Fiber lasers, LIDAR, Laser development, YAG lasers, Carbon dioxide lasers, Satellites, Carbon dioxide, Absorption, Frequency modulation, Earth's atmosphere

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Fibertek has developed and demonstrated an ideal high-power; low-risk; low-size, weight, and power (SWaP) 2051 nm laser design meeting the lidar requirements for satellite-based global measurement of carbon dioxide (CO₂). The laser design provides a path to space for either a coherent lidar approach being developed by NASA Jet Propulsion Laboratory (JPL)^1,2 or an Integrated Path Differential Lidar (IPDA) approach developed by Harris Corp using radio frequency (RF) modulation and being flown as part of a NASA Earth Venture Suborbital Mission—NASA’s Atmospheric Carbon and Transport – America.^3,4 The thulium (Tm) fiber laser amplifies a <500 kHz linewidth distributed feedback (DFB) laser up to 25 W average power in a polarization maintaining (PM) fiber. The design manages and suppresses all deleterious non-linear effects that can cause linewidth broadening or amplified spontaneous emission (ASE) and meets all lidar requirements. We believe the core laser components, architecture, and design margins can support a coherent or IPDA lidar 10-year space mission. With follow-on funding Fibertek can adapt an existing space-based Technology Readiness Level 6 (TRL-6), 20 W erbium fiber laser package for this Tm design and enable a near-term space mission with an electrical-to-optical (e-o) efficiency of <20%.

A cladding-pumped PM Tm fiber-based amplifier optimized for high efficiency and high-power operation at 2051 nm is presented. The two-stage amplifier has been demonstrated to achieve 25 W average power and <16 dB polarization extinction ratio (PER) out of a single-mode PM fiber using a <500 kHz linewidth JPL DFB laser^5-7 and 43 dB gain. The power amplifier’s optical conversion efficiency is 53%. An internal efficiency of 58% is calculated after correcting for passive losses. The two-stage amplifier sustains its highly efficient operation for a temperature range of 5-40°C. The absence of stimulated Brillouin scattering (SBS) for the narrow linewidth amplification shows promise for further power scaling.

Proceedings Article | 24 October 2016 Presentation + Paper

Er:YAG laser technology for remote sensing applications

Moran Chen, Patrick Burns, Viatcheslav Litvinovitch, Mark Storm, Nicholas Sawruk

Proceedings Volume 10006, 1000603 (2016) https://doi.org/10.1117/12.2242119

KEYWORDS: Er:YAG lasers, Methane, LIDAR, Absorption, Resonators, Semiconductor lasers, Q switching, Fabry–Perot interferometers, Pulsed laser operation, Servomechanisms

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SPIE Journal Paper | 9 August 2016

Development, testing, and initial space qualification of 1.5-μm, high-power (6 W), pulse-position-modulated fiber laser transmitter for deep-space laser communication

Shantanu Gupta, Doruk Engin, Dave Pachowicz, Jean-Luc Fouron, Juan Lander, Xung Dang, Slava Litvinovitch, Ti Chuang, Kent Puffenberger, Frank Kimpel, Rich Utano, Malcolm Wright

OE, Vol. 55, Issue 11, 111606, (August 2016) https://doi.org/10.1117/12.10.1117/1.OE.55.11.111606

KEYWORDS: Laminated object manufacturing, Transmitters, Fiber amplifiers, Fiber lasers, Semiconductor lasers, Interfaces, Laser communications, Fiber optics, Fiber optic components, Optical communications

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Proceedings Article | 5 May 2016 Paper

UV lifetime demonstrator for space-based applications

Michael Albert, Kent Puffenburger, Tom Schum, Fran Fitzpatrick, Slava Litvinovitch, Darrell Jones, Joseph Rudd, Floyd Hovis

Proceedings Volume 9879, 987909 (2016) https://doi.org/10.1117/12.2228371

KEYWORDS: Ultraviolet radiation, LIDAR, Laser development, Semiconductor lasers, Laser applications, Clouds, Aerosols, Ozone, Contamination control, Process control, Semiconductor lasers, Laser applications, Optical amplifiers, Diodes, Oscillators, Amplifiers

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Proceedings Article | 15 March 2016 Paper

Development, testing, and initial space qualification of 1.5-µm, high-power (6W), pulse-position-modulated (PPM) fiber laser transmitter for deep-space laser communication

Shantanu Gupta, Doruk Engin, Dave Pachowicz, Jean-Luc Fouron, Juan Lander, Xung Dang, Slava Litvinovich, Ti Chuang, Kent Puffenberger, Frank Kimpel, Rich Utano, Malcolm Wright

Proceedings Volume 9739, 97390V (2016) https://doi.org/10.1117/12.2213661

KEYWORDS: Transmitters, Fiber lasers, Laser communications, Astronomical imaging, Asteroids, High power lasers, Laser development, Polarization, Diffraction, Laser sources, Laminated object manufacturing, Semiconductor lasers, Electronics, Interfaces, Optical communications, Fiber optic components, Pulsed laser operation

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Proceedings Article | 2 September 2015 Paper

UV lifetime laser demonstrator for space-based applications

Michael Albert, Kent Puffenburger, Tom Schum, Fran Fitzpatrick, Slava Litvinovitch, Darrell Jones, Joseph Rudd, Floyd Hovis

Proceedings Volume 9612, 961209 (2015) https://doi.org/10.1117/12.2191188

KEYWORDS: Ultraviolet radiation, LIDAR, Optical amplifiers, Laser applications, Laser development, Oscillators, Diodes, Semiconductor lasers, Ozone, Interfaces

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Proceedings Article | 20 February 2015 Paper

ICESat-2 laser technology readiness level evolution

Nicholas Sawruk, Patrick Burns, Ryan Edwards, Theodore Wysocki, Andre VanTuijl, Viatcheslav Litvinovitch, Edward Sullivan, Floyd Hovis

Proceedings Volume 9342, 93420L (2015) https://doi.org/10.1117/12.2080531

KEYWORDS: Laser applications, Laser systems engineering, Pulsed laser operation, Laser optics, Neodymium, Electronics, Reliability, Electromagnetic coupling, Laser development, Diodes

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Proceedings Article | 26 September 2014 Paper

Design validation for ICESat2 space-based laser transmitter

Patrick Burns, Nicholas Sawruk, Andre VanTuijl, Slava Litvinovitch, Ti Chuang, Ryan Edwards, William Rudd, Elias Fakhoury, Theodore Wysocki, Floyd Hovis

Proceedings Volume 9218, 92181G (2014) https://doi.org/10.1117/12.2062323

KEYWORDS: Laser development, Electromagnetic coupling, Transmitters, Laser applications, Space telescopes, Laminated object manufacturing, Fiber amplifiers, Near field optics, Fourier transforms, Reliability

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Proceedings Article | 9 June 2014 Paper

Highly reliable and efficient 1.5um-fiber-MOPA-based, high-power laser transmitter for space communication

Doruk Engin, Slava Litvinovitch, Frank Kimpel, Kent Puffenberger, Xung Dang, Jean-Luc Fouron, Nigel Martin, Mark Storm, Shantanu Gupta, Rich Utano

Proceedings Volume 9081, 90810G (2014) https://doi.org/10.1117/12.2050496

KEYWORDS: Laminated object manufacturing, Transmitters, Laser optics, Fiber lasers, High power lasers, Laser development, Astronomical imaging, Optical amplifiers, Interfaces, Optical communications

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Proceedings Article | 24 September 2013 Paper

Fiber laser systems for space lasercom and remote sensing

Shantanu Gupta, Doruk Engin, Kent Puffenberger, Slava Litvinovich, Frank Kimpel, Rich Utano

Proceedings Volume 8876, 88760E (2013) https://doi.org/10.1117/12.2025888

KEYWORDS: Fiber lasers, Transmitters, Laser applications, Laser systems engineering, Space operations, Fiber optics, Semiconductor lasers, Remote sensing, Failure analysis, Modulation

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Proceedings Article | 18 September 2013 Paper

Flexure mounted spaceflight laser for high g-load launch environment

Viatcheslav Litvinovitch, Joel Edelman

Proceedings Volume 8836, 88360L (2013) https://doi.org/10.1117/12.2021636

KEYWORDS: Laser development, Diodes, Finite element methods, Data modeling, Analytical research, Aerospace engineering, Acoustics, Fiber lasers, Laser systems engineering, Electronics

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Proceedings Article | 17 September 2013 Paper

Approach to space-qualification of the ICESat-2 laser transmitter

Floyd Hovis, Nick Sawruk, Mark Stephen, Joel Edelman, Slava Litvinovitch, Ryan Edwards, Joe Rudd, Jim Bautch, Elias Fakhoury

Proceedings Volume 8872, 887203 (2013) https://doi.org/10.1117/12.2026269

KEYWORDS: Laser applications, Laser development, Transmitters, Optical filters, Clouds, Aerosols, LIDAR, Electronics, Distortion, Oscillators

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Proceedings Article | 6 March 2013 Paper

Space qualified laser transmitter for NASA's ICESat-2 mission

Nicholas Sawruk, Mark Stephen, Slava Litvinovitch, Joel Edelman, Michael Albert, Ryan Edwards, Charles Culpepper, William Rudd, Elias Fakhoury, Floyd Hovis

Proceedings Volume 8599, 85990O (2013) https://doi.org/10.1117/12.2005590

KEYWORDS: Transmitters, Laser applications, Pulsed laser operation, Laser optics, Neodymium, Thermography, Optical amplifiers, Thermal modeling, Laser systems engineering, Tunable lasers

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Showing 5 of 23 publications

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