Dr. Roger L. Farrow Profile

Dr. Roger L. Farrow

Laser Engineer

SPIE Involvement:

Author

Publications (17)

Proceedings Article | 4 March 2022 Presentation + Paper

Presentation + Paper

Advanced metal processing enabled by fiber lasers with tunable beam properties

Dahv Kliner, R. Farrow, J. Lugo, B. O'Dea, R. Hawke, B. Victor, K. Gross, A. Hodges, A. Brown, J. Pruyn, R. Stephens, B. Foley, K. Almonte, B. Kehoe, M. Hamilton, M. Reynolds, C. Luetjen, T. Lowder, S. Karlsen, D. Balsley, M. Antoina, T. Kokki, D. Swenson, C. Archer, R. Martinsen, M. Hepp

Proceedings Volume 11981, 119810C (2022) https://doi.org/10.1117/12.2614728

KEYWORDS: Additive manufacturing, Laser welding, Materials processing, Fiber lasers, Laser cutting, Beam shaping, Laser applications, Laser processing

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Proceedings Article | 9 September 2019 Paper

Paper

Variable beam high power fiber laser with optimized beam characteristics for metal cutting

B. O'Dea, R. L. Farrow, B. Victor, J. Lugo, R. Hawke, K. Gross, A. Hodges, A. Brown, M. Nelson, B. Foley, Y. Chen, K. Almonte, D. Dye, M. Reynolds, K. Kennedy, D. Swenson, D. A. V. Kliner

Proceedings Volume 11107, 111070J (2019) https://doi.org/10.1117/12.2528809

KEYWORDS: Laser cutting, Fiber lasers, Beam shaping, Metals, Free space optics, Laser processing, Switching, Laser applications, Materials processing

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Proceedings Article | 26 February 2018 Paper

Paper

Next-generation fiber lasers enabled by high-performance components

D. A. Kliner, B. Victor, C. Rivera, G. Fanning, D. Balsley, R. Farrow, K. Kennedy, S. Hampton, R. Hawke, E. Soukup, M. Reynolds, A. Hodges, J. Emery, A. Brown, K. Almonte, M. Nelson, B. Foley, D. Dawson, D. Hemenway, W. Urbanek, M. DeVito, L. Bao, J. Koponen, K. Gross

Proceedings Volume 10513, 105130S (2018) https://doi.org/10.1117/12.2292271

KEYWORDS: Laser welding, Ytterbium, Materials processing, Semiconductor lasers, Fiber lasers, Modulation, Laser cutting, Diodes, Reliability, Laser processing

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Proceedings Article | 7 March 2014 Paper

Paper

High-peak power, flexible-pulse parameter, chirally coupled core (3C) fiber-based picosecond MOPA systems

Timothy McComb, Dennis McCal, Roger Farrow, Tyson Lowder, David Logan, Jared Green, Timpthy Kutscha, Changgeng Ye, Ville Aallos, Joona Koponen, Geoff Fanning

Proceedings Volume 8961, 896112 (2014) https://doi.org/10.1117/12.2037974

KEYWORDS: Pulsed laser operation, Amplifiers, Fiber lasers, Laser applications, Laser systems engineering, Semiconductor lasers, Fiber couplers, Picosecond phenomena, Pulsed fiber lasers, Electronics

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Proceedings Article | 4 June 2011 Paper

Paper

A two-pulse, pump-probe method for short-range, remote standoff detection of chemical warfare agents

Scott Bisson, Jeffrey Headrick, Thomas Reichardt, Roger Farrow, Thomas Kulp

Proceedings Volume 8018, 80180Q (2011) https://doi.org/10.1117/12.887918

KEYWORDS: Laser induced fluorescence, Laser beam diagnostics, Raman spectroscopy, Aluminum, Plasma, Natural surfaces, Standoff detection, Chemical analysis, Raman scattering

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Proceedings Article | 22 February 2011 Paper

Paper

Fused fiber pump and signal combiners for a 4-kW ytterbium fiber laser

Martin Muendel, Roger Farrow, Kai-Hsiu Liao, Dirk Woll, Johnny Luu, Chris Zhang, James Morehead, Jeff Segall, Jeff Gregg, Kuochou Tai, Boris Kharlamov, Hongbo Yu, Lawrence Myers

Proceedings Volume 7914, 791431 (2011) https://doi.org/10.1117/12.877572

KEYWORDS: Fiber lasers, Ytterbium, Semiconductor lasers, Fiber coupled lasers, Signal attenuation, Laser applications, Laser systems engineering, Current controlled current source, Multimode fibers, Cladding

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Proceedings Article | 19 February 2009 Paper

Paper

Modeling of pulsed-fiber sources

Arlee Smith, G. Ronald Hadley, Roger Farrow

Proceedings Volume 7195, 719517 (2009) https://doi.org/10.1117/12.807204

KEYWORDS: Fiber amplifiers, Continuous wave operation, Optical damage, Phase modulation, Fiber lasers, Thermal modeling, Medium wave, Step index fibers, Four wave mixing, Optical amplifiers

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Proceedings Article | 14 April 2008 Paper

Paper

Overview of Sandia's fiber laser program

Dahv A. Kliner, Ray Bambha, Binh Do, Roger Farrow, Jean-Philippe Fève, Brian Fox, G. Ronald Hadley, Andrea Hansen, Hanna Hoffman, Mircea Hotoleanu, Alexandra Hoops, Wen Hsu, Jeffrey Koplow, Joona Koponen, Sean Moore, Randal Schmitt, Paul Schrader, Joseph Simmons, Kelly Simmons-Potter, Arlee Smith, Mikko Söderlund, W. Joseph Thomes, Georg Wien

Proceedings Volume 6952, 695202 (2008) https://doi.org/10.1117/12.782227

KEYWORDS: Fiber amplifiers, Diodes, Fiber lasers, Optical amplifiers, 3D modeling, Nonlinear dynamics, Optical damage, Performance modeling, Optical filters, Optical pumping

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Proceedings Article | 20 February 2008 Paper

Paper

Power scaling of fiber-based amplifiers seeded with microchip lasers

Paul Schrader, Jean-Philippe Fève, Roger Farrow, Dahv A. Kliner, Randal Schmitt, Binh Do

Proceedings Volume 6871, 68710T (2008) https://doi.org/10.1117/12.778388

KEYWORDS: Fiber amplifiers, Optical amplifiers, Fiber lasers, Nonlinear dynamics, Pulsed laser operation, Polarization, Absorption, Scanning probe microscopy, Medium wave, Diodes

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Proceedings Article | 13 February 2008 Paper

Paper

Compact, narrow-linewidth, tunable ultraviolet laser source for detecting Hg emissions

Alexandra Hoops, Roger Farrow, Paul Schulz, Thomas Reichardt, Ray Bambha, Randal Schmitt, Dahv Kliner

Proceedings Volume 6875, 68750K (2008) https://doi.org/10.1117/12.761907

KEYWORDS: Crystals, Laser crystals, Nonlinear crystals, Mercury, Ultraviolet radiation, Pulsed laser operation, Laser sources, Laser development, Optical amplifiers, Semiconductor lasers

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Proceedings Article | 22 February 2007 Paper

Paper

Limiting effects of four-wave-mixing in high-power pulsed-fiber amplifiers

Jean-Philippe Fève, Paul Schrader, Roger Farrow, Dahv Kliner

Proceedings Volume 6453, 64531P (2007) https://doi.org/10.1117/12.701817

KEYWORDS: Fiber amplifiers, Absorption, Phase modulation, Polarization, Signal generators, Amplifiers, Diodes, Bandpass filters, Raman spectroscopy, Photons

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Proceedings Article | 22 February 2007 Paper

Paper

Design of refractive-index and rare-earth-dopant distributions for large-mode-area fibers used in coiled high-power amplifiers

Roger Farrow, G. Ronald Hadley, Dahv Kliner, Jeffrey Koplow

Proceedings Volume 6453, 64531C (2007) https://doi.org/10.1117/12.701594

KEYWORDS: Amplifiers, Manufacturing, Doping, Packaging, Fiber amplifiers, Step index fibers, Optical filters, Refractive index, Solids, Medium wave

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Proceedings Article | 22 February 2007 Paper

Paper

Three-dimensional, time-dependent modeling of high-power fiber amplifiers

G. Ronald Hadley, Roger Farrow, Arlee Smith

Proceedings Volume 6453, 64531B (2007) https://doi.org/10.1117/12.717376

KEYWORDS: 3D modeling, Fiber amplifiers, Beam propagation method, Optical simulations, Data modeling, Distortion, Beam shaping, Optimization (mathematics), Refraction, Dispersion

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Proceedings Article | 20 February 2007 Paper

Paper

Numerical modeling of self-focusing beams in fiber amplifiers

Roger Farrow, G. Ronald Hadley, Arlee Smith, Dahv Kliner

Proceedings Volume 6453, 645309 (2007) https://doi.org/10.1117/12.701571

KEYWORDS: Medium wave, Beam propagation method, Fiber amplifiers, Waveguides, Wave propagation, Multimode fibers, Step index fibers, Numerical modeling, Dielectrics, Optical amplifiers

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Proceedings Article | 20 February 2007 Paper

Paper

Fiber-based laser with tunable repetition rate, fixed pulse duration, and multiple wavelength output

Paul Schrader, Roger Farrow, Dahv Kliner, Jean-Philippe Fève, Nicolas Landru

Proceedings Volume 6453, 64530D (2007) https://doi.org/10.1117/12.701529

KEYWORDS: Fiber amplifiers, Crystals, Amplifiers, Optical amplifiers, Pulsed laser operation, Fiber lasers, Polarization, Laser crystals, Laser applications, Laser systems engineering

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Proceedings Article | 23 February 2006 Paper

Paper

Bent-waveguide modeling of large-mode-area, double-clad fibers for high-power lasers

G. Hadley, Roger Farrow, Arlee Smith

Proceedings Volume 6102, 61021S (2006) https://doi.org/10.1117/12.656699

KEYWORDS: Medium wave, Beam propagation method, Optical fibers, Fiber lasers, Laser beam propagation, Systems modeling, Wave propagation, Amplifiers, High power lasers, Optical simulations

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Proceedings Article | 23 February 2006 Paper

Paper

High-peak-power (>1.2 MW) pulsed fiber amplifier

Roger Farrow, Dahv Kliner, Paul Schrader, Alexandra Hoops, Sean Moore, G. Hadley, Randal Schmitt

Proceedings Volume 6102, 61020L (2006) https://doi.org/10.1117/12.646815

KEYWORDS: Fiber amplifiers, Medium wave, Fiber lasers, Pulsed laser operation, Optical amplifiers, Amplifiers, Nonlinear dynamics, Sensors, Optical damage, Ytterbium

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Showing 5 of 17 publications

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