Dr. Robert Martinsen Profile

Dr. Robert Martinsen

Chief Technology Officer at nLIGHT Inc

SPIE Involvement:

Conference Program Committee | Author

Publications (50)

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

Read Abstract +

Proceedings Article | 2 March 2020 Presentation + Paper

Presentation + Paper

Wavelength stabilized fiber-coupled laser modules for DPSS and fiber laser pumping

M. Hemenway, Z. Chen, M. Kanskar, W. Urbanek, D. Dawson, L. Bao, M. DeVito, K. Fortier, R. Martinsen, K. Welch, R. Ballaban

Proceedings Volume 11262, 112620I (2020) https://doi.org/10.1117/12.2547539

KEYWORDS: Semiconductor lasers, Fiber lasers, Diodes, Absorption, Ytterbium, Epitaxy, Diode pumped solid state lasers, Fiber couplers

Read Abstract +

Proceedings Article | 4 March 2019 Presentation + Paper

Presentation + Paper

976nm high brightness fiber-coupled laser modules for ytterbium fiber laser pumping

M. Hemenway, Z. Chen, M. Kanskar, W. Urbanek, D. Dawson, L. Bao, M. DeFranza, M. DeVito, K. Fortier, R. Martinsen, K. Welch

Proceedings Volume 10900, 109000D (2019) https://doi.org/10.1117/12.2513911

KEYWORDS: Semiconductor lasers, Fiber lasers, Diodes, Polarization, Multiplexing, Reliability

Read Abstract +

Proceedings Article | 4 March 2019 Presentation + Paper

Presentation + Paper

High brightness diodes and 600W and 60% efficient fiber-coupled packages enabled by reduced-mode (REM) diodes

M. Kanskar, C. Bai, L. Bao, N. Biekert, Z. Chen, M. DeFranza, M. DeVito, K. Fortier, M. Grimshaw, X. Guan, M. Hemenway, S. Li, E. Martin, R. Martinsen, T. Prunty, W. Urbanek, B. Wilkins, J. Zhang, S. Zhang

Proceedings Volume 10900, 109000H (2019) https://doi.org/10.1117/12.2510722

KEYWORDS: Diodes, Semiconductor lasers, Fiber lasers, Directed energy weapons, Polarization, Defense and security, Energy efficiency, Fiber amplifiers, Multiplexers, Mirrors

Read Abstract +

Proceedings Article | 14 May 2018 Presentation

Presentation

High-temperature diode laser pumps for low SWaP directed energy lasers (Conference Presentation)

Manoj Kanskar, Ling Bao, Zhigang Chen, Mark DeVito, Mike Grimshaw, Xinguo Guan, Marty Hemenway, Rob Martinsen, Wolfram Urbanek, Jim Zhang, Shiguo Zhang

Proceedings Volume 10637, 106370D (2018) https://doi.org/10.1117/12.2305010

KEYWORDS: Semiconductor lasers, Directed energy weapons, Fiber lasers, Laser energy, Diodes, Fiber amplifiers, Laser applications, Laser systems engineering, Heatsinks, Laser development

Read Abstract +

Proceedings Article | 19 February 2018 Presentation + Paper

Presentation + Paper

Continued advances in high brightness fiber-coupled laser modules for efficient pumping of fiber and solid-state lasers

M. Hemenway, Z. Chen, W. Urbanek, D. Dawson, L. Bao, M. Kanskar, M. DeVito, R. Martinsen

Proceedings Volume 10514, 105140P (2018) https://doi.org/10.1117/12.2290196

KEYWORDS: Diodes, Multiplexing, Semiconductor lasers, Polarization, Fiber lasers, Reliability, Fiber couplers, Fiber coupled lasers, Solid state lasers, Solids

Read Abstract +

Proceedings Article | 19 February 2018 Presentation + Paper

Presentation + Paper

Improvement in reduced-mode (REM) diodes enable 315 W from 105-µm 0.15-NA fiber-coupled modules

M. Kanskar, L. Bao, Z. Chen, D. Dawson, M. DeVito, W. Dong, M. Grimshaw, X. Guan, M. Hemenway, R. Martinsen, W. Urbanek, S. Zhang

Proceedings Volume 10514, 105140L (2018) https://doi.org/10.1117/12.2289146

KEYWORDS: Diodes, Semiconductor lasers, Fiber lasers, Continuous wave operation, Materials processing, Solid state lasers, Consumer electronics, Manufacturing, Defense and security, Fiber amplifiers

Read Abstract +

Proceedings Article | 7 June 2017 Presentation

Presentation

High-temperature diode laser pumps for directed energy fiber lasers (Conference Presentation)

Manoj Kanskar, Ling Bao, Zhigang Chen, Mark DeVito, Weimin Dong, Mike Grimshaw, Xinguo Guan, David Hemenway, Robert Martinsen, Jim Zhang, Shiguo Zhang

Proceedings Volume 10192, 101920F (2017) https://doi.org/10.1117/12.2263699

KEYWORDS: Fiber lasers, Semiconductor lasers, Directed energy weapons, Diodes, Fiber amplifiers, Laser applications, Laser systems engineering, Heatsinks, Laser development, Resistance

Read Abstract +

Proceedings Article | 22 February 2017 Paper

Paper

Continued improvement in reduced-mode (REM) diodes enable 272 W from 105 µm 0.15 NA beam

M. Kanskar, L. Bao, Z. Chen, D. Dawson, M. DeVito, W. Dong, M. Grimshaw, X. Guan, M. Hemenway, R. Martinsen, W. Urbanek, S. Zhang

Proceedings Volume 10086, 1008609 (2017) https://doi.org/10.1117/12.2253000

KEYWORDS: Diodes, Semiconductor lasers, Fiber lasers, Manufacturing, Continuous wave operation, Chemical elements, Optical components, High power lasers, Near field optics

Read Abstract +

Proceedings Article | 22 February 2017 Presentation + Paper

Presentation + Paper

Advances in high-brightness fiber-coupled laser modules for pumping multi-kW CW fiber lasers

M. Hemenway, W. Urbanek, D. Dawson, Z. Chen, L. Bao, M. Kanskar, M. DeVito, D. Kliner, R. Martinsen

Proceedings Volume 10086, 1008605 (2017) https://doi.org/10.1117/12.2250656

KEYWORDS: Fiber lasers, Semiconductor lasers, Fiber coupled lasers, Diodes, Optomechanical design, Polarization, Multiplexing, Reliability, Optical design, Space operations, Fiber couplers, Raman scattering

Read Abstract +

Proceedings Article | 22 April 2016 Paper

Paper

Performance improvements to wavelength stabilized high power 885nm diode laser modules

M. Hemenway, L. Bao, M. Kanskar, M. DeVito, W. Urbanek, M. Grimshaw, K. Bruce, D. Dawson, R. Martinsen, P. Leisher

Proceedings Volume 9730, 97300K (2016) https://doi.org/10.1117/12.2211087

KEYWORDS: Diode pumped solid state lasers, High power lasers, Semiconductor lasers, Laser packaging, Laser stabilization, Diodes, High power diode lasers, Reliability, Failure analysis, Reflectivity, Fiber Bragg gratings, Fermium, Frequency modulation

Read Abstract +

Proceedings Article | 4 March 2016 Paper

Paper

Reduced-mode (REM) diodes enable high brightness fiber-coupled modules

M. Kanskar, L. Bao, Z. Chen, D. Dawson, M. DeVito, W. Dong, M. Grimshaw, X. Guan, M. Hemenway, K. Kennedy, R. Martinsen, W. Urbanek, S. Zhang

Proceedings Volume 9733, 97330D (2016) https://doi.org/10.1117/12.2214992

KEYWORDS: Semiconductor lasers, Diodes, Fiber lasers, Reliability, Materials processing, Solid state lasers, Diode pumped solid state lasers, Consumer electronics, Manufacturing, Continuous wave operation, Polarization, Solids

Read Abstract +

Proceedings Article | 13 March 2015 Paper

Paper

High reliability demonstrated on high-power and high-brightness diode lasers

L. Bao, M. Kanskar, Mark DeVito, M. Hemenway, W. Urbanek, M. Grimshaw, Z. Chen, W. Dong, X. Guan, S. Zhang, D. Dawson, R. Martinsen

Proceedings Volume 9348, 93480C (2015) https://doi.org/10.1117/12.2080361

KEYWORDS: Reliability, Semiconductor lasers, High power lasers, Diodes, Laser development, Failure analysis, Fiber lasers, Beam controllers, Thermal effects, Lithium

Read Abstract +

Proceedings Article | 13 March 2015 Paper

Paper

High-brightness diodes and fiber-coupled modules

M. Kanskar, L. Bao, Z. Chen, M. Hemenway, D. Dawson, M. DeVito, W. Dong, M. Grimshaw, X. Guan, K. Kennedy, R. Martinsen, W. Urbanek, S. Zhang

Proceedings Volume 9348, 934804 (2015) https://doi.org/10.1117/12.2079809

KEYWORDS: Diodes, Semiconductor lasers, Electro optical modeling, Reliability, Data modeling, Solids, High power lasers, Fiber lasers, Thermal effects, Performance modeling

Read Abstract +

Proceedings Article | 7 March 2014 Paper

Paper

High power diode lasers emitting from 639 nm to 690 nm

L. Bao, M. Grimshaw, M. DeVito, M. Kanskar, W. Dong, X. Guan, S. Zhang, J. Patterson, P. Dickerson, K. Kennedy, S. Li, J. Haden, R. Martinsen

Proceedings Volume 8965, 896512 (2014) https://doi.org/10.1117/12.2041278

KEYWORDS: Semiconductor lasers, Reliability, Continuous wave operation, Diodes, High power lasers, Mirrors, Laser development, High power diode lasers, Laser applications

Read Abstract +

Proceedings Article | 7 March 2014 Paper

Paper

High reliability of high power and high brightness diode lasers

M. Kanskar, L. Bao, J. Bai, Z. Chen, D. Dahlen, M. DeVito, W. Dong, M. Grimshaw, J. Haden, X. Guan, M. Hemenway, K. Kennedy, R. Martinsen, J. Tibbals, W. Urbanek, S. Zhang

Proceedings Volume 8965, 896508 (2014) https://doi.org/10.1117/12.2040851

KEYWORDS: Reliability, Semiconductor lasers, Diodes, Fiber lasers, High power lasers, Continuous wave operation, Near field, Performance modeling, Resistance, Near field optics

Read Abstract +

Proceedings Article | 26 February 2013 Paper

Paper

Reliability of high power/brightness diode lasers emitting from 790 to 980 nm

L. Bao, J. Bai, K. Price, M. Devito, M. Grimshaw, W. Dong, X. Guan, S. Zhang, H. Zhou, K. Bruce, D. Dawson, M. Kanskar, R. Martinsen, J. Haden

Proceedings Volume 8605, 86050N (2013) https://doi.org/10.1117/12.2005443

KEYWORDS: Reliability, Semiconductor lasers, Laser resonators, Continuous wave operation, Failure analysis, Laser development, Fiber lasers, Diodes, High power diode lasers

Read Abstract +

Proceedings Article | 26 February 2013 Paper

Paper

Optimized performance of 808 nm diode laser bars for efficient high-power operation

J. Bai, L. Bao, W. Dong, X. Guan, Sandrio Elim, S. Zhang, J. Patterson, M. Grimshaw, M. DeVito, M. Kanskar, R. Martinsen, J. Haden

Proceedings Volume 8605, 86050F (2013) https://doi.org/10.1117/12.2005479

KEYWORDS: Semiconductor lasers, Coating, Reflectivity, High power lasers, Continuous wave operation, Reliability, Instrument modeling, Performance modeling, Surgery, Optimization (mathematics)

Read Abstract +

Proceedings Article | 9 February 2012 Paper

Paper

Performance limitation and mitigation of longitudinal spatial hole burning in high-power diode lasers

Zhigang Chen, Ling Bao, John Bai, Mike Grimshaw, Rob Martinsen, Mark DeVito, Jim Haden, Paul Leisher

Proceedings Volume 8277, 82771J (2012) https://doi.org/10.1117/12.909524

KEYWORDS: Semiconductor lasers, High power lasers, Reflectivity, Waveguides, Diodes, Quantum efficiency, Thermal effects, Hole burning spectroscopy, Optical lithography, Solids

Read Abstract +

Proceedings Article | 9 February 2012 Paper

Paper

High performance diode lasers emitting at 780-820 nm

L. Bao, M. DeVito, M. Grimshaw, P. Leisher, H. Zhou, W. Dong, X. Guan, S. Zhang, R. Martinsen, J. Haden

Proceedings Volume 8241, 824109 (2012) https://doi.org/10.1117/12.910321

KEYWORDS: Reliability, Semiconductor lasers, Failure analysis, Continuous wave operation, Data modeling, Laser development, High power lasers, Fiber lasers, Heatsinks

Read Abstract +

Proceedings Article | 9 February 2012 Paper

Paper

High-efficiency kW-class QCW 88x-nm diode semiconductor laser bars with passive cooling

John Bai, Zhigang Chen, Paul Leisher, Ling Bao, Mark DeFranza, Mike Grimshaw, Mark DeVito, Rob Martinsen, Manoj Kanskar, Jim Haden

Proceedings Volume 8241, 82410W (2012) https://doi.org/10.1117/12.910244

KEYWORDS: Semiconductor lasers, Reliability, Accelerated life testing, Data modeling, Resistance, Performance modeling, Thermal modeling, Surgery, Finite element methods, Metalorganic chemical vapor deposition

Read Abstract +

Proceedings Article | 26 May 2011 Paper

Paper

Progress in commercial wavelength-stabilized high-brightness diode sources suitable for pumping Yb-doped fiber lasers

Aaron Brown, Paul Leisher, Geoff Fanning, Scott Lerner, Zhigang Chen, Ling Bao, Mike Grimshaw, Mark DeVito, Kirk Price, Keith Kennedy, Shelly Lin, Mitchell Reynolds, Scott Karlsen, Jay Small, Robert Martinsen, Jim Haden

Proceedings Volume 8039, 80390O (2011) https://doi.org/10.1117/12.883194

KEYWORDS: Semiconductor lasers, Diodes, Fiber couplers, Fiber lasers, High power diode lasers, Fiber coupled lasers, Reliability, Near field optics, Volume holography, Holography

Read Abstract +

Proceedings Article | 22 February 2011 Paper

Paper

Wavelength stabilized diode laser based devices free of power or efficiency penalties

Paul Leisher, Aaron Brown, Rob Martinsen, Jim Haden, Mitch Reynolds, Shelly Lin, Rob Renner, Keith Kennedy

Proceedings Volume 7918, 79180D (2011) https://doi.org/10.1117/12.876078

KEYWORDS: Semiconductor lasers, Diodes, Fiber lasers, Diode pumped solid state lasers, Er:YAG lasers, Absorption, Reliability, Nd:YAG lasers, Manufacturing, Solid state lasers

Read Abstract +

Proceedings Article | 21 February 2011 Paper

Paper

Reliability of high power diode laser systems based on single emitters

Paul Leisher, Mitch Reynolds, Aaron Brown, Keith Kennedy, Ling Bao, Jun Wang, Mike Grimshaw, Mark DeVito, Scott Karlsen, Jay Small, Chris Ebert, Rob Martinsen, Jim Haden

Proceedings Volume 7918, 791802 (2011) https://doi.org/10.1117/12.875858

KEYWORDS: Reliability, Failure analysis, Semiconductor lasers, Laser systems engineering, Diodes, Fiber lasers, Fiber coupled lasers, High power diode lasers, Continuous wave operation, Heatsinks

Read Abstract +

Proceedings Article | 21 February 2011 Paper

Paper

High reliability and high performance of 9xx-nm single emitter laser diodes

L. Bao, P. Leisher, J. Wang, M. Devito, D. Xu, M. Grimshaw, W. Dong, X. Guan, S. Zhang, C. Bai, J. Bai, D. Wise, R. Martinsen

Proceedings Volume 7918, 791806 (2011) https://doi.org/10.1117/12.875869

KEYWORDS: Reliability, Semiconductor lasers, Statistical analysis, Heatsinks, Continuous wave operation, High power lasers, Fiber lasers, Error analysis, Data modeling, High power diode lasers

Read Abstract +

Proceedings Article | 17 February 2011 Paper

Paper

Performance and reliability of high power 7xx nm laser diodes

Ling Bao, Jun Wang, Mark Devito, Dapeng Xu, Mike Grimshaw, Weimin Dong, Xingguo Guan, Hua Huang, Paul Leisher, Shiguo Zhang, Damian Wise, Robert Martinsen, Jim Haden

Proceedings Volume 7953, 79531B (2011) https://doi.org/10.1117/12.875842

KEYWORDS: Reliability, Semiconductor lasers, Continuous wave operation, Heatsinks, Control systems, Failure analysis, High power lasers, Laser development, High power diode lasers, Near field optics

Read Abstract +

Proceedings Article | 17 February 2011 Paper

Paper

Mitigation of thermal lensing effect as a brightness limitation of high-power broad area diode lasers

John Bai, Paul Leisher, Shiguo Zhang, Sandrio Elim, Mike Grimshaw, Chendong Bai, Louis Bintz, David Dawson, Ling Bao, Jun Wang, Mark DeVito, Rob Martinsen, Jim Haden

Proceedings Volume 7953, 79531F (2011) https://doi.org/10.1117/12.875849

KEYWORDS: Semiconductor lasers, Thermal effects, Broad area laser diodes, Fiber coupled lasers, Fiber couplers, Finite element methods, Fiber lasers, Reliability, Thermal engineering, Resistance

Read Abstract +

Proceedings Article | 18 February 2010 Paper

Paper

KW-class industrial diode lasers comprised of single emitters

Kirk Price, Frank Pfeffer, Paul Leisher, Scott Karlsen, Robert Martinsen

Proceedings Volume 7583, 75830E (2010) https://doi.org/10.1117/12.842164

KEYWORDS: Semiconductor lasers, Laser systems engineering, Reliability, Diodes, Fiber lasers, High power lasers, Polarization, Collimation, Fiber coupled lasers, Metals

Read Abstract +

Proceedings Article | 18 February 2010 Paper

Paper

High-brightness fiber-coupled pump laser development

Kirk Price, Scott Karlsen, Paul Leisher, Robert Martinsen

Proceedings Volume 7583, 758308 (2010) https://doi.org/10.1117/12.842102

KEYWORDS: Fiber lasers, Semiconductor lasers, Fiber couplers, Diodes, Fiber coupled lasers, Laser development, Solid state lasers, Nd:YAG lasers, Materials processing, Geometrical optics

Read Abstract +

Proceedings Article | 18 February 2010 Paper

Paper

Reliability of high performance 9xx-nm single emitter laser diodes

Ling Bao, Jun Wang, Mark Devito, Dapeng Xu, Damian Wise, Paul Leisher, Mike Grimshaw, Weimin Dong, Shiguo Zhang, Kirk Price, Daming Li, Chendong Bai, Steve Patterson, Rob Martinsen

Proceedings Volume 7583, 758302 (2010) https://doi.org/10.1117/12.842856

KEYWORDS: Semiconductor lasers, Reliability, Failure analysis, Data modeling, High power lasers, Near field optics, Process control, Statistical analysis, Near field, Continuous wave operation

Read Abstract +

Proceedings Article | 18 February 2010 Paper

Paper

Reliability and performance of 808-nm single emitter multi-mode laser diodes

J. Wang, L. Bao, M. Devito, D. Xu, D. Wise, M. Grimshaw, W. Dong, S. Zhang, C. Bai, P. Leisher, D. Li, H. Zhou, S. Patterson, R. Martinsen, J. Haden

Proceedings Volume 7583, 758305 (2010) https://doi.org/10.1117/12.842876

KEYWORDS: Heatsinks, Reliability, Failure analysis, Surgery, Semiconductor lasers, Temperature metrology, Near field optics, Structural design, Continuous wave operation

Read Abstract +

Proceedings Article | 7 May 2009 Paper

Paper

High brightness diode laser module development at nLIGHT Photonics

Kirk Price, Scott Karlsen, Aaron Brown, Mitch Reynolds, Ron Mehl, Paul Leisher, Steve Patterson, Jake Bell, Rob Martinsen

Proceedings Volume 7325, 73250T (2009) https://doi.org/10.1117/12.823411

KEYWORDS: Semiconductor lasers, Fiber couplers, Fiber lasers, Diodes, Fiber coupled lasers, Laser development, Photonics, Lithium, Collimation, Cladding

Read Abstract +

Proceedings Article | 7 May 2009 Paper

Paper

Highly reliable high-efficiency wavelength-stabilized 885 nm diode laser bars

Paul Leisher, Ling Bao, Hua Huang, Jun Wang, Mark DeVito, Weimin Dong, Mike Grimshaw, David Balsley, Rob Martinsen, Mark DeFranza, Steve Patterson

Proceedings Volume 7325, 73250R (2009) https://doi.org/10.1117/12.820872

KEYWORDS: Semiconductor lasers, Fiber Bragg gratings, Nd:YAG lasers, Reliability, Laser applications, Diodes, Heatsinks, Collimation, Absorption

Read Abstract +

Proceedings Article | 24 February 2009 Paper

Paper

High-performance wavelength-locked diode lasers

Paul Leisher, Kirk Price, Scott Karlsen, David Balsley, Doug Newman, Rob Martinsen, Steve Patterson

Proceedings Volume 7198, 719812 (2009) https://doi.org/10.1117/12.813528

KEYWORDS: Semiconductor lasers, Er:YAG lasers, Nd:YAG lasers, Absorption, Solid state lasers, Diodes, Laser applications, Optical design, Epitaxy, Fiber Bragg gratings

Read Abstract +

Proceedings Article | 24 February 2009 Paper

Paper

Long-term wavelength stability of high-power laser diode bars on microchannel coolers

David Balsley, David Dawson, Ryan Johnson, Robert Martinsen

Proceedings Volume 7198, 71980J (2009) https://doi.org/10.1117/12.809925

KEYWORDS: Gold, Nickel, Diodes, Semiconductor lasers, Resistance, Heatsinks, Plating, Copper, Corrosion, Oxides

Read Abstract +

Proceedings Article | 24 February 2009 Paper

Paper

100-W 105-um 0.15NA fiber coupled laser diode module

Scott Karlsen, R. Kirk Price, Mitch Reynolds, Aaron Brown, Ron Mehl, Steve Patterson, Robert Martinsen

Proceedings Volume 7198, 71980T (2009) https://doi.org/10.1117/12.809710

KEYWORDS: Semiconductor lasers, Diodes, Fiber lasers, Fiber couplers, Fiber coupled lasers, Collimation, Free space optics, Lithium, Cladding, Laser development

Read Abstract +

Proceedings Article | 14 April 2008 Paper

Paper

High-power diode lasers operating around 1500-nm for eyesafe applications

Steve Patterson, Paul Leisher, Kirk Price, Keith Kennedy, Weimin Dong, Mike Grimshaw, Shiguo Zhang, Jason Patterson, Suhit Das, Scott Karlsen, Rob Martinsen, Jake Bell

Proceedings Volume 6952, 69520W (2008) https://doi.org/10.1117/12.795157

KEYWORDS: Semiconductor lasers, High power lasers, Er:YAG lasers, Solid state lasers, Nd:YAG lasers, Diodes, Reliability, Copper, Crystals, Optical parametric oscillators

Read Abstract +

Proceedings Article | 3 April 2008 Paper

Paper

Mode control for high performance laser diode sources

Paul Leisher, Kirk Price, Shabbir Bashar, Ling Bao, Hua Huang, Jun Wang, Damian Wise, Shiguo Zhang, Suhit Das, Mark DeFranza, Aaron Hodges, Utsu Trifan, David Balsley, Weimin Dong, Mike Grimshaw, Mark DeVito, Jake Bell, Robert Martinsen, Jason Farmer, Paul Crump, Steve Patterson

Proceedings Volume 6952, 69520C (2008) https://doi.org/10.1117/12.778392

KEYWORDS: Semiconductor lasers, Diodes, Fiber Bragg gratings, Reliability, Optical design, Solid state lasers, High power lasers, Epitaxy, Nd:YAG lasers, Control systems

Read Abstract +

Proceedings Article | 13 February 2008 Paper

Paper

Enhanced microchannel cooling for high-power semiconductor diode lasers

Joe Dix, Amir Jokar, Robert Martinsen

Proceedings Volume 6876, 687606 (2008) https://doi.org/10.1117/12.762172

KEYWORDS: Semiconductor lasers, Microfluidics, Liquids, Computational fluid dynamics, Resistance, Semiconductors, Solids, High power lasers, Heat flux, Fluid dynamics

Read Abstract +

Proceedings Article | 10 May 2007 Paper

Paper

A CTE matched, hard solder, passively cooled laser diode package combined with nXLT facet passivation enables high power, high reliability operation

Aaron Hodges, Jun Wang, Mark DeFranza, Xingsheng Liu, Bill Vivian, Curt Johnson, Paul Crump, Paul Leisher, Mark DeVito, Robert Martinsen, Jacob Bell

Proceedings Volume 6552, 65521E (2007) https://doi.org/10.1117/12.730700

KEYWORDS: Indium, Semiconductor lasers, Reliability, Diodes, High power lasers, Copper, Laser packaging, Temperature metrology, Laser development

Read Abstract +

Proceedings Article | 7 February 2007 Paper

Paper

Extending the wavelength range of single-emitter diode lasers for medical and sensing applications: 12xx-nm quantum dots, 2000-nm wells, > 5000-nm cascade lasers

Paul Crump, Steve Patterson, Sandrio Elim, Shiguo Zhang, Mike Bougher, Jason Patterson, Suhit Das, Weimin Dong, Mike Grimshaw, Jun Wang, Damian Wise, Mark DeFranza, Jake Bell, Jason Farmer, Mark DeVito, Rob Martinsen, Alexey Kovsh, Fatima Toor, Claire Gmachl

Proceedings Volume 6456, 64560E (2007) https://doi.org/10.1117/12.706177

KEYWORDS: Quantum wells, Quantum dots, Semiconductor lasers, Quantum cascade lasers, Gallium arsenide, Quantum efficiency, High power lasers, Crystals, Metalorganic chemical vapor deposition, Indium gallium arsenide

Read Abstract +

Proceedings Article | 7 February 2007 Paper

Paper

100-W+ diode laser bars show > 71% power conversion from 790-nm to 1000-nm and have clear route to > 85%

Paul Crump, Weimin Dong, Mike Grimshaw, Jun Wang, Steve Patterson, Damian Wise, Mark DeFranza, Sandrio Elim, Shiguo Zhang, Mike Bougher, Jason Patterson, Suhit Das, Jake Bell, Jason Farmer, Mark DeVito, Rob Martinsen

Proceedings Volume 6456, 64560M (2007) https://doi.org/10.1117/12.704496

KEYWORDS: Semiconductor lasers, Quantum wells, Crystals, Heatsinks, High power lasers, Electrons, Absorption, Diodes, Reliability, Laser systems engineering

Read Abstract +

Proceedings Article | 5 October 2006 Paper

Paper

Diode laser bars deliver > 400-W peak CW power from 800-nm to 980-nm enabling wide range of applications

Paul Crump, Steve Patterson, Jun Wang, Weimin Dong, Mike Grimshaw, Shiguo Zhang, Sandrio Elim, Mike Bougher, Jason Patterson, Suhit Das, Damian Wise, Mark DeFranza, Jake Bell, Jason Farmer, Mark De Vito, Rob Martinsen

Proceedings Volume 6397, 639706 (2006) https://doi.org/10.1117/12.689842

KEYWORDS: Semiconductor lasers, High power lasers, Resistance, Crystals, Solid state lasers, Laser crystals, Indium, Continuous wave operation, Packaging, Solid state electronics

Read Abstract +

Proceedings Article | 12 May 2006 Paper

Paper

High-power high-efficiency high-brightness long-wavelength laser diodes

Steve Patterson, Paul Crump, Jun Wang, Weimin Dong, Mike Grimshaw, Shiguo Zhang, Sandrio Elim, Suhit Das, Mike Bougher, Jason Patterson, Guokui Kuang, Jake Bell, Jason Farmer, Mark DeVito

Proceedings Volume 6216, 62160A (2006) https://doi.org/10.1117/12.667431

KEYWORDS: Semiconductor lasers, Er:YAG lasers, Solid state lasers, Diodes, Laser dentistry, Crystals, Nd:YAG lasers, Optical parametric oscillators, High power lasers, Semiconductors

Read Abstract +

Proceedings Article | 15 February 2006 Paper

Paper

Diode laser efficiency increases enable >400-W peak power from 1-cm bars and show a clear path to peak powers in excess of 1-kW

Paul Crump, Jun Wang, Steve Patterson, Damian Wise, Alex Basauri, Mark DeFranza, Sandrio Elim, Weimin Dong, Shiguo Zhang, Mike Bougher, Jason Patterson, Suhit Das, Mike Grimshaw, Jason Farmer, Mark DeVito, Rob Martinsen

Proceedings Volume 6104, 610409 (2006) https://doi.org/10.1117/12.649552

KEYWORDS: Semiconductor lasers, Resistance, Diodes, Thermal efficiency, Gallium arsenide, Packaging, Copper, Indium, Quantum wells, Crystals

Read Abstract +

Proceedings Article | 25 April 2000 Paper

Paper

Laser-based SXGA reflective light valve projector with E-cinema quality contrast and color space

Keith Kennedy, Robert Martinsen, Andrew Radl, John Arntsen, Masayuki Karakawa

Proceedings Volume 3954, (2000) https://doi.org/10.1117/12.383369

KEYWORDS: Projection systems, Light sources, RGB color model, Polarization, Lamps, Light valves, Modulation transfer functions, Image resolution, Speckle, Imaging systems

Read Abstract +

Proceedings Article | 4 May 1999 Paper

Paper

High-power blue laser for large-screen projectors

Andrew Radl, Keith Kennedy, Robert Martinsen, Masayuki Karakawa

Proceedings Volume 3613, (1999) https://doi.org/10.1117/12.347679

KEYWORDS: Crystals, Video, High power lasers, Projection systems, Pulsed laser operation, Bragg cells, Imaging systems, Second-harmonic generation, Light sources, Laser development

Read Abstract +

Proceedings Article | 4 May 1998 Paper

Paper

Diode-pumped vanadate lasers for variable-resolution video projectors

Robert Martinsen, Masayuki Karakawa, Stephen McDowell, Keith Kennedy, Andrew Radl

Proceedings Volume 3285, (1998) https://doi.org/10.1117/12.307600

KEYWORDS: Projection systems, Video, Semiconductor lasers, RGB color model, Neodymium lasers, Pulsed laser operation, Modulation, Light sources, Optical parametric oscillators, Crystals

Read Abstract +

Proceedings Article | 10 January 1997 Paper

Paper

Pulsed RGB lasers for large-screen video displays

Robert Martinsen, Masayuki Karakawa, Stephen McDowell

Proceedings Volume 3000, (1997) https://doi.org/10.1117/12.263495

KEYWORDS: Video, Pulsed laser operation, Projection systems, RGB color model, Acousto-optics, Laser video displays, Diode pumped solid state lasers, Bragg cells, Modulation, Image resolution

Read Abstract +

Proceedings Article | 22 December 1992 Paper

Paper

Optical measurements of ripples using a scanning-laser slope gauge: Part I--instrumentation and preliminary results

Robert Martinsen, Erik Bock

Proceedings Volume 1749, (1992) https://doi.org/10.1117/12.138854

KEYWORDS: Sensors, Surface roughness, Interfaces, Ocean optics, Data acquisition, Head, Statistical analysis, Radar, Doppler effect, X band

Read Abstract +

Showing 5 of 50 publications

Conference Committee Involvement (25)

Laser 3D Manufacturing XII

28 January 2025 | San Francisco, California, United States

High-Power Diode Laser Technology XXIII

26 January 2025 | San Francisco, California, United States

Laser 3D Manufacturing XI

30 January 2024 | San Francisco, California, United States

High-Power Diode Laser Technology XXII

28 January 2024 | San Francisco, California, United States

Laser 3D Manufacturing X

31 January 2023 | San Francisco, California, United States

High-Power Diode Laser Technology XXI

29 January 2023 | San Francisco, California, United States

High-Power Diode Laser Technology XX

23 January 2022 | San Francisco, California, United States

High-Power Diode Laser Technology XIX

6 March 2021 | Online Only, California, United States

High-Power Diode Laser Technology XVIII

2 February 2020 | San Francisco, California, United States

High-Power Diode Laser Technology XVII

3 February 2019 | San Francisco, California, United States

High-Power Diode Laser Technology XVI

29 January 2018 | San Francisco, California, United States

High-Power Diode Laser Technology XV

30 January 2017 | San Francisco, California, United States

High-Power Diode Laser Technology and Applications XIV

15 February 2016 | San Francisco, California, United States

High-Power Diode Laser Technology and Applications XIII

8 February 2015 | San Francisco, California, United States

High-Power Diode Laser Technology and Applications XII

2 February 2014 | San Francisco, California, United States

High-Power Diode Laser Technology and Applications XI

3 February 2013 | San Francisco, California, United States

High-Power Diode Laser Technology and Applications X

22 January 2012 | San Francisco, California, United States

High-Power Diode Laser Technology and Applications IX

23 January 2011 | San Francisco, California, United States

High-Power Diode Laser Technology and Applications VIII

25 January 2010 | San Francisco, California, United States

High-Power Diode Laser Technology and Applications VII

26 January 2009 | San Jose, California, United States

Projection Displays XII

24 January 2007 | San Jose, California, United States

Projection Displays XI

26 January 2005 | San Jose, California, United States

Projection Displays X

21 January 2004 | San Jose, California, United States

Projection Displays IX

22 January 2003 | Santa Clara, CA, United States

Laser Diode Applications IV

26 January 1998 | San Jose, CA, United States

Showing 5 of 25 Conference Committees

SIGN IN TO:

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Advertisement

Advertisement