Dr. Andreas P. Engelhardt Profile

Dr. Andreas P. Engelhardt

R&D Engineer at TRUMPF Photonic Components GmbH

SPIE Involvement:

Author

Publications (4)

Proceedings Article | 4 March 2015 Paper

Efficiency optimization and analysis of 808nm VCSELs with a full electro-thermal-optical numerical model

Andreas Engelhardt, Johanna Kolb, Friedhard Roemer, Ulrich Weichmann, Holger Moench, Bernd Witzigmann

Proceedings Volume 9381, 93810M (2015) https://doi.org/10.1117/12.2077065

KEYWORDS: Vertical cavity surface emitting lasers, Doping, Electro optical modeling, Quantum wells, Electro optics, Optimization (mathematics), Oxides, Mirrors, Instrument modeling, 3D modeling

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SPIE Journal Paper | 23 January 2015

Temperature-dependent investigation of carrier transport, injection, and densities in AlGaAs-based multi-quantum-well active layers for vertical-cavity surface-emitting lasers

Andreas Engelhardt, Johanna Kolb, Friedhard Roemer, Ulrich Weichmann, Holger Moench, Bernd Witzigmann

OE, Vol. 54, Issue 01, 016107, (January 2015) https://doi.org/10.1117/12.10.1117/1.OE.54.1.016107

KEYWORDS: Quantum wells, Vertical cavity surface emitting lasers, Electro optical modeling, Electrons, 3D modeling, Mirrors, Data modeling, Electro optics, Calibration, Temperature metrology

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Proceedings Article | 2 May 2014 Paper

Temperature dependent investigation of carrier transport, injection, and densities in 808 nm AlGaAs multi-quantum-well active layers for VCSELs

Andreas Engelhardt, Johanna Kolb, Friedhard Römer, Ulrich Weichmann, Holger Moench, Bernd Witzigmann

Proceedings Volume 9134, 91341G (2014) https://doi.org/10.1117/12.2051601

KEYWORDS: Quantum wells, Vertical cavity surface emitting lasers, Electrons, Electro optical modeling, Mirrors, Electro optics, Semiconductor lasers, Laser damage threshold, Data modeling, Calibration

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Proceedings Article | 27 February 2014 Paper

Optimized VCSELs for high-power arrays

Holger Moench, Johanna Kolb, Andreas Engelhardt, Philipp Gerlach, Roland Jaeger, Jens Pollmann-Retsch, Ulrich Weichmann, Bernd Witzigmann

Proceedings Volume 9001, 90010F (2014) https://doi.org/10.1117/12.2037608

KEYWORDS: Vertical cavity surface emitting lasers, Mirrors, Virtual colonoscopy, Resistance, Temperature metrology, Neodymium, Electro optics, Electroluminescence, Electro optical systems, Oxides

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