Dr. Stewart D. McDougall Profile

Dr. Stewart D. McDougall

at TRUMPF Photonics Inc

SPIE Involvement:

Conference Program Committee | Author

Proceedings Article | 12 March 2024 Presentation + Paper

Advances in manufacturing technology for low cost QCW diode laser stacks suitable for high energy pumping applications

Tobias Barnowski, Thilo Vethake, Katie Atwater, Tim Gong, Reza Razavi, Eric Zanghi, Ping Zhang, Stewart McDougall

Proceedings Volume 12867, 1286713 (2024) https://doi.org/10.1117/12.3003308

KEYWORDS: Semiconductor lasers, Manufacturing, Laser bonding, Interfaces, Dielectrics, Copper, Laser soldering, Laser bars, Diodes, Electrical conductivity

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Proceedings Article | 14 March 2023 Presentation + Paper

High-power semiconductor laser chips for fiber-laser-based Lidar pump applications

Xiaohang Liu, Yihan Xiong, Ching-Long Jiang, Prasanta Modak, Ayesha Jamil, Xi Liu, Stewart McDougall

Proceedings Volume 12403, 1240309 (2023) https://doi.org/10.1117/12.2650446

KEYWORDS: Semiconductor lasers, LIDAR, Fiber lasers, Heatsinks, Reliability, Chip manufacturing, Thermal stability, Polarization

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Proceedings Article | 4 March 2022 Presentation + Paper

Advances in 976nm single emitter broad area semiconductor diode lasers for 300W+ fiber laser pump module applications

Yihan Xiong, Ching-long Jiang, Ayesha Jamil, Xiaohang Liu, Xi Liu, Prasanta Modak, Stewart McDougall, Konstantin Boucke

Proceedings Volume 11983, 1198305 (2022) https://doi.org/10.1117/12.2610381

KEYWORDS: Semiconductor lasers, Fiber lasers, Reliability, Semiconductors, Laser development, Failure analysis, Resistance, Polarization, Diodes, Copper

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Proceedings Article | 4 March 2022 Presentation + Paper

Progress in experimental studies into the beam parameter product of GaAs-based high-power diode lasers

Paul Crump, Mohamed Elattar, Md. Jarez Miah, Michael Ekterai, Matthias Karow, Dominik Martin, Pietro Della Casa, Andre Maaßdorf, Stewart McDougall, Carlo Holly, Simon Rauch, Stefan Gruetzner, Stephan Strohmaier, Andrea Knigge, Günther Tränkle

Proceedings Volume 11983, 1198307 (2022) https://doi.org/10.1117/12.2610277

KEYWORDS: Semiconductor lasers, High power lasers, Temperature metrology, Continuous wave operation, Near field, Optical testing, Near field optics, Thermography

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Proceedings Article | 2 March 2020 Presentation + Paper

Advances in diode laser bar power and reliability for multi-kW disk laser pump sources

S. McDougall, T. Barnowski, G. Ryu, S. Heinemann, T. Vethake, X. Liu, C.-L. Jiang, H. Zimer

Proceedings Volume 11262, 1126206 (2020) https://doi.org/10.1117/12.2545995

KEYWORDS: Semiconductor lasers, Disk lasers, Laser applications, Reliability, Laser development, Laser welding, Diodes, Quantum wells

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Proceedings Article | 19 February 2018 Presentation + Paper

Advanced chip designs and novel cooling techniques for brightness scaling of industrial, high power diode laser bars

S. Heinemann, S. McDougall, G. Ryu, L. Zhao, X. Liu, C. Holy, C.-L. Jiang, P. Modak, Y. Xiong, T. Vethake, S. Strohmaier, B. Schmidt, H. Zimer

Proceedings Volume 10514, 105140Y (2018) https://doi.org/10.1117/12.2290638

KEYWORDS: Semiconductor lasers, Reliability, Refractive index, Diodes, Quantum wells, Laser applications, Waveguides, Near field, Packaging, Temperature metrology

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Showing 5 of 6 publications

Conference Committee Involvement (3)

High-Power Diode Laser Technology XXIII

25 January 2025 | San Francisco, California, United States

High-Power Diode Laser Technology XXII

28 January 2024 | San Francisco, California, United States

High-Power Diode Laser Technology XXI

29 January 2023 | San Francisco, California, United States

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