Dr. René Todt Profile

Dr. René Todt

Senior Manager R&D at Coherent Corp.

SPIE Involvement:

Conference Program Committee | Author

Websites:

Company Website

Proceedings Article | 12 March 2024 Presentation + Paper

Ultra high-power and highly efficient 9xx nm single emitters with up to 65W output power under CW operation

René Todt, Riyaz Abdul Khadar, Sabine Riedi, Anissa Zeghuzi, Christian Krammel, Markus Rösch, Nicolo Oliva

Proceedings Volume 12867, 128670X (2024) https://doi.org/10.1117/12.3003705

KEYWORDS: Optical simulations, Edge emitting semiconductor lasers, Semiconductor lasers, Fiber lasers, Polarization, High power lasers, Diodes, Continuous wave operation, Pulsed laser operation

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Proceedings Article | 4 March 2022 Presentation + Paper

High-volume manufacturing of state-of-the-art high-power laser diodes on 6-inch GaAs

René Todt, Stefan Deubert, Dominik Jaeggi

Proceedings Volume 11983, 1198303 (2022) https://doi.org/10.1117/12.2611047

KEYWORDS: Semiconducting wafers, Gallium arsenide, Fiber lasers, Semiconductor lasers, Quantum wells, High power lasers, Diodes, High volume manufacturing, Waveguides, Reliability, NoResults

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Proceedings Article | 12 March 2014 Paper

High power pump laser diodes for 2µm fiber laser

S. Pawlik, R. Todt, M. Moser, O. Romero, N. Lichtenstein

Proceedings Volume 8965, 89650R (2014) https://doi.org/10.1117/12.2040141

KEYWORDS: Semiconductor lasers, Fiber lasers, Laser development, Fiber coupled lasers, High power lasers, Temperature metrology, YAG lasers, Reliability, Reflectivity, Continuous wave operation

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Proceedings Article | 26 February 2013 Paper

Next generation 9xx/10xx nm high power laser diode bars for multi-kilowatt industrial applications

Paul Commin, René Todt, Martin Krejci, Rainer Bättig, Reinhard Brunner, Norbert Lichtenstein

Proceedings Volume 8605, 86050Y (2013) https://doi.org/10.1117/12.2004296

KEYWORDS: High power lasers, Resistance, Diodes, Reliability, Aluminum, Quantum wells, Indium, Semiconductor lasers, Polarization

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Proceedings Article | 18 February 2010 Paper

CW to QCW power scaling of high-power laser bars

J. Müller, R. Todt, M. Krejci, Y. Manz-Gilbert, B. Valk, R. Brunner, R. Bättig, N. Lichtenstein

Proceedings Volume 7583, 758318 (2010) https://doi.org/10.1117/12.842077

KEYWORDS: High power lasers, Continuous wave operation, Semiconductor lasers, Surgery, Laser crystals, Diodes, Laser applications, Laser processing, Lasers

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Proceedings Article | 24 February 2009 Paper

Power scaling of bars toward 85mW per 1um stripe width reliable output power

Martin Krejci, Yvonne Gilbert, Jürgen Müller, René Todt, Stefan Weiss, Norbert Lichtenstein

Proceedings Volume 7198, 719804 (2009) https://doi.org/10.1117/12.809454

KEYWORDS: High power lasers, Semiconductor lasers, Technologies and applications, Current controlled current source

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Proceedings Article | 1 April 2005 Paper

Wide-wavelength tuning of sampled grating tunable twin-guide laser diodes

Rene Todt, Thomas Jacke, Ralf Meyer, Reinhard Laroy, Geert Morthier, Markus-Christian Amann

Proceedings Volume 5738, (2005) https://doi.org/10.1117/12.590936

KEYWORDS: Semiconductor lasers, Tunable lasers, Reflectivity, Seaborgium, Wavelength tuning, Refractive index, Interfaces, Diodes, Optical networks, Calibration

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Proceedings Article | 31 January 2005 Paper

New widely tunable edge-emitting laser diodes at 1.55 µm developed in the European IST-project NEWTON

Geert Morthier, Reinhard Laroy, Ilse Christiaens, Rene Todt, Thomas Jacke, Markus-Christian Amann, Jan-Olof Wesstrom, Stefan Hammerfeldt, Tommy Mullane, Neil Ryan, Michael Todd

Proceedings Volume 5624, (2005) https://doi.org/10.1117/12.578749

KEYWORDS: Semiconductor lasers, Tunable lasers, Reflectors, Resonators, Waveguides, Diodes, Laser development, Terahertz radiation, Switching, Modulation

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Proceedings Article | 20 December 2004 Paper

Tunable twin-guide laser diodes for wide wavelength tuning at 1.55 µm

Rene Todt, Thomas Jacke, Ralf Meyer, Reinhard Laroy, Geert Morthier, Markus-Christian Amann

Proceedings Volume 5594, (2004) https://doi.org/10.1117/12.570237

KEYWORDS: Semiconductor lasers, Tunable lasers, Wavelength tuning, Seaborgium, Refractive index, Modulation, Optical communications, Optical networks, Calibration, Laser applications

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Proceedings Article | 1 September 2004 Paper

Widely tunable laser diodes with vertically integrated Mach-Zehnder interferometer (VMZ)

Thomas Jacke, Rene Todt, Markus-Christian Amann

Proceedings Volume 5452, (2004) https://doi.org/10.1117/12.545089

KEYWORDS: Waveguides, Optical filters, Refractive index, Tunable lasers, Interferometers, Diodes, Heterojunctions, Interfaces, Seaborgium, Semiconductor lasers

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Proceedings Article | 28 March 2002 Paper

InAs quantum dot laser diodes: structure, characteristics, and temperature dependence

Vadim Tokranov, Michael Yakimov, Alex Katsnelson, Katharine Dovidenko, Rene Todt, Serge Oktyabrsky

Proceedings Volume 4656, (2002) https://doi.org/10.1117/12.460804

KEYWORDS: Indium arsenide, Gallium arsenide, Semiconductor lasers, Transmission electron microscopy, Quantum wells, Laser damage threshold, Luminescence, Gallium, Cladding, Electroluminescence

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Showing 5 of 11 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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