Dr. Stefan Hengesbach Profile

Dr. Stefan Hengesbach

CEO at QuiX Quantum B.V.

SPIE Involvement:

Author

Area of Expertise:

Optics Design , Diode Lasers , Development strategy , Packaging , Frequency stabilization , Sales and Service

Publications (15)

Proceedings Article | 9 March 2023 Presentation

Presentation

20-mode programmable quantum photonics system for photon processing

Jörn Epping, Ben Kassenberg, Michiel de Goede, Henk Snijders, Pim Venderbosch, Narashim Kannan, Nikhil Sen, Pavel Stremoukhov, Caterina Taballione, Hans van den Vlekkert, Jelmer Renema, Stefan Hengesbach, Devin Smith

Proceedings Volume PC12446, PC124460F (2023) https://doi.org/10.1117/12.2653957

KEYWORDS: Photonics systems, Quantum computing, Single photon, Quantum information processing, Quantum dots, Computing systems, Waveguides, Silicon, Quantum optics, Quantum information

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Proceedings Article | 22 April 2016 Paper

Paper

Key optical components for spaceborne lasers

J. Löhring, M. Winzen, H. Faidel, J. Miesner, D. Plum, J. Klein, O. Fitzau, M. Giesberts, W. Brandenburg, A. Seidel, N. Schwanen, D. Riesters, S. Hengesbach, H.-D. Hoffmann

Proceedings Volume 9730, 97300O (2016) https://doi.org/10.1117/12.2212319

KEYWORDS: Mirrors, Wave plates, Laser systems engineering, LIDAR, Optical isolators, Laser development, Crystals, Optical components, Laser crystals, Temperature metrology

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Proceedings Article | 4 March 2016 Paper

Paper

Simultaneous frequency stabilization and high-power dense wavelength division multiplexing (HP-DWDM) using an external cavity based on volume Bragg gratings (VBGs)

Stefan Hengesbach, Sarah Klein, Carlo Holly, Ulrich Witte, Martin Traub, Dieter Hoffmann

Proceedings Volume 9733, 97330K (2016) https://doi.org/10.1117/12.2212550

KEYWORDS: Laser stabilization, Fiber Bragg gratings, Multiplexing, Dense wavelength division multiplexing, Semiconductor lasers, Mirrors, Multiplexers, Diffraction, Dielectric mirrors, Beam quality measurement, Diffraction gratings, Laser stabilization, Collimation, High power lasers, Diodes

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Proceedings Article | 4 March 2016 Paper

Paper

Compact 35µm fiber coupled diode laser module based on dense wavelength division multiplexing of NBA mini-bars

U. Witte, M. Traub, A. Di Meo, M. Hamann, D. Rubel, S. Hengesbach, D. Hoffmann

Proceedings Volume 9733, 97330H (2016) https://doi.org/10.1117/12.2211157

KEYWORDS: Semiconductor lasers, Fiber couplers, Fiber coupled lasers, Dense wavelength division multiplexing, Dielectric filters, Fiber lasers, High power diode lasers, Optical filters, Collimation, Near field, Multiplexing, Scattering, Laser scattering, Reflectivity

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Proceedings Article | 13 March 2015 Paper

Paper

Brightness and average power as driver for advancements in diode lasers and their applications

Stefan Hengesbach, Reinhart Poprawe, Dieter Hoffmann, Martin Traub, Thomas Schwarz, Carlo Holly, Florian Eibl, Andreas Weisheit, Sabrina Vogt, Simon Britten, Michael Ungers, Ulrich Thombansen, Christoph Engelmann, Viktor Mamuschkin, Philipp Lott

Proceedings Volume 9348, 93480B (2015) https://doi.org/10.1117/12.2085068

KEYWORDS: Semiconductor lasers, Vertical cavity surface emitting lasers, Laser systems engineering, Laser applications, Laser welding, Heat treatments, Laser processing, Fiber lasers, Metals, Image processing

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Proceedings Article | 17 December 2014 Paper

Paper

Automatic design of multi-lens optical systems based on stock lenses for high power lasers

Martin Traub, Dieter Hoffmann, Stefan Hengesbach, Peter Loosen

Proceedings Volume 9293, 92931I (2014) https://doi.org/10.1117/12.2074508

KEYWORDS: Lenses, Lens design, Mirrors, Optical design, Scanners, Zemax, High power lasers, Laser scanners, 3D scanning, Polygon scanners

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Proceedings Article | 7 March 2014 Paper

Paper

Numerical analysis of external feedback concepts for spectral stabilization of high-power broad-area semiconductor lasers

Carlo Holly, Stefan Hengesbach, Martin Traub, Dieter Hoffmann

Proceedings Volume 8965, 89650K (2014) https://doi.org/10.1117/12.2037053

KEYWORDS: Waveguides, Resonators, Semiconductor lasers, Electroluminescent displays, Collimation, High power lasers, Optical simulations, Diodes, Diffraction, Mirrors

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Proceedings Article | 7 March 2014 Paper

Paper

Automated alignment of fast-axis collimator lenses for high-power diode laser bars

Thomas Westphalen, Stefan Hengesbach, Carlo Holly, Martin Traub, Dieter Hoffmann

Proceedings Volume 8965, 89650V (2014) https://doi.org/10.1117/12.2041245

KEYWORDS: Semiconductor lasers, Lenses, Electroluminescent displays, Optical alignment, Collimators, Algorithm development, High power diode lasers, High power lasers, Laser applications, Optical components

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Proceedings Article | 7 March 2014 Paper

Paper

High-power dense wavelength division multiplexing (HP-DWDM) of frequency stabilized 9xx diode laser bars with a channel spacing of 1.5 nm

Stefan Hengesbach, Carlo Holly, Niels Krauch, Ulrich Witte, Thomas Westphalen, Martin Traub, Dieter Hoffmann

Proceedings Volume 8965, 89650C (2014) https://doi.org/10.1117/12.2036974

KEYWORDS: Multiplexing, Semiconductor lasers, Laser stabilization, Multiplexers, High power lasers, Dense wavelength division multiplexing, Temperature metrology, Laser development, Dielectric mirrors, Mirrors

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Proceedings Article | 28 February 2014 Paper

Paper

Broadly tunable, longitudinally diode-pumped Alexandrite laser

M. Strotkamp, U. Witte, A. Munk, A. Hartung, S. Gausmann, S. Hengesbach, M. Traub, H.-D. Hoffmann, J. Hoeffner, B. Jungbluth

Proceedings Volume 8959, 89591G (2014) https://doi.org/10.1117/12.2039380

KEYWORDS: Alexandrite lasers, Semiconductor lasers, Crystals, Laser crystals, Mirrors, Pulsed laser operation, Alexandrite, Prisms, Output couplers, LIDAR

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Proceedings Article | 26 February 2013 Paper

Paper

Low-loss smile-insensitive external frequency-stabilization of high power diode lasers enabled by vertical designs with extremely low divergence angle and high efficiency

Paul Crump, Steffen Knigge, Andre Maaßdorf, Frank Bugge, Stefan Hengesbach, Ulrich Witte, Hans-Dieter Hoffmann, Bernd Köhler, Ralf Hubrich, Heiko Kissel, Jens Biesenbach, Götz Erbert, Guenther Traenkle

Proceedings Volume 8605, 86050T (2013) https://doi.org/10.1117/12.2000528

KEYWORDS: Semiconductor lasers, Laser stabilization, Rutherfordium, Collimation, Waveguides, Near field optics, Near field, Reflectivity, Laser development, Refractive index

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Proceedings Article | 21 February 2011 Paper

Paper

Simulation and analysis of volume holographic gratings integrated in collimation optics for wavelength stabilization

S. Hengesbach, U. Witte, M. Traub, D. Hoffmann

Proceedings Volume 7918, 79180A (2011) https://doi.org/10.1117/12.877538

KEYWORDS: Diffraction, Semiconductor lasers, Diffraction gratings, Holography, Collimation, Volume holography, Polarization, Waveguides, Integrated optics, 3D modeling

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Proceedings Article | 24 February 2009 Paper

Paper

High-power fiber-coupled modules based on tapered diode lasers at 975 nm

Gerd Kochem, Martin Traub, Stefan Hengesbach, Dieter Hoffmann

Proceedings Volume 7198, 71980R (2009) https://doi.org/10.1117/12.809240

KEYWORDS: Single mode fibers, Semiconductor lasers, Collimation, Beam splitters, Fiber couplers, Mirrors, Fiber lasers, Diffraction, Fiber coupled lasers, Laser vision correction

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Proceedings Article | 24 February 2009 Paper

Paper

100 W/100 um passively cooled fiber coupled diode laser at 976 nm based on multiple 100 um single emitters

Marcel Werner, Christian Wessling, Stefan Hengesbach, Martin Traub, Hans-Dieter Hoffmann

Proceedings Volume 7198, 71980P (2009) https://doi.org/10.1117/12.810487

KEYWORDS: Semiconductor lasers, Fiber couplers, Fiber lasers, Aspheric lenses, Fiber coupled lasers, Silica, Polarization, Optical alignment, Cladding, Optical design

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Proceedings Article | 25 February 2008 Paper

Paper

50 W passively cooled, fiber coupled diode laser at 976 nm for pumping fiber lasers using 100 um fiber bundles

C. Wessling, St. Hengesbach, J. Geiger, J. Dolkemeyer, M. Traub, D. Hoffmann

Proceedings Volume 6876, 687614 (2008) https://doi.org/10.1117/12.763739

KEYWORDS: Semiconductor lasers, Fiber lasers, Fiber couplers, Fiber coupled lasers, Collimation, Mirrors, Broad area laser diodes, Electro optical modeling, Polarization, Microlens array

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Showing 5 of 15 publications

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