Mr. Marco Höfer Profile

Marco Höfer

Group Manager at Fraunhofer-ILT

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Author

Publications (18)

Proceedings Article | 8 March 2023 Presentation + Paper

Thulium- and holmium-doped high stability fiber amplifiers at 2 µm for next generation gravitational wave detectors

P. Baer, A. Elshani, M. Reiter, P. Cebeci, M. Giesberts, J. Ebert, M. Hoefer, D. Hoffmann

Proceedings Volume 12400, 124000J (2023) https://doi.org/10.1117/12.2649611

KEYWORDS: Fiber amplifiers, Fiber lasers, Wavelength division multiplexing, Laser development, Polarization, Telescopes, Relative intensity noise, Laser stabilization, Laser radiation, Emission wavelengths

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Proceedings Article | 5 March 2021 Presentation + Paper

Laser ablation of bone tissue with Q-switched infrared laser sources for neurosurgical applications

Christina Giesen, Lazar Bochvarov, Benjamin Erben, Simon Reichelt, Marco Hoefer, Leo Müller, Peter Reinacher, Achim Lenenbach

Proceedings Volume 11627, 116270B (2021) https://doi.org/10.1117/12.2577117

KEYWORDS: Laser ablation, Bone, Q switched lasers, Infrared lasers, Laser tissue interaction, Laser systems engineering, Laser cutting, Tumors, Laser sources

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Proceedings Article | 4 March 2020 Paper

Highly stable, high power hybrid fiber and Innoslab amplifier for narrow linewidth signals

P. Cebeci, J. Mosquera, M. Höfer, O. Fitzau, M. Giesberts, B. Erben, H.-D. Hoffmann

Proceedings Volume 11259, 112590L (2020) https://doi.org/10.1117/12.2545934

KEYWORDS: Fiber amplifiers, Optical amplifiers, High power fiber amplifiers, Amplifiers, Resonators, Fiber lasers

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Proceedings Article | 13 March 2019 Presentation

410W single stage in band pumped Nd:YVO4 INNOSLAB amplifier for ps pulses (Conference Presentation)

Marco Höfer, Jhon Jairo Vera Mosquera, Robin Lutum, Benjamin Erben, Hans-Dieter Hoffman

Proceedings Volume 10896, 108960G (2019) https://doi.org/10.1117/12.2508610

KEYWORDS: Neodymium lasers, Picosecond phenomena, Amplifiers, Laser amplifiers, Diodes, Crystals

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Proceedings Article | 8 March 2017 Paper

A single-frequency Ho:YLF pulsed laser with frequency stability better than 500 kHz

P. Kucirek, A. Meissner, S. Nyga, J. Mertin, M. Höfer, H.-D. Hoffmann

Proceedings Volume 10082, 100821K (2017) https://doi.org/10.1117/12.2253722

KEYWORDS: Laser stabilization, Pulsed laser operation, Oscillators, Q switching, Diodes, Semiconductor lasers, Mirrors, Heterodyning, Crystals, Gas lasers

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Proceedings Article | 16 March 2016 Paper

A single-frequency double-pulse Ho:YLF laser for CO2-lidar

P. Kucirek, A. Meissner, P. Eiselt, M. Höfer, D. Hoffmann

Proceedings Volume 9726, 97260K (2016) https://doi.org/10.1117/12.2214952

KEYWORDS: Resonators, Laser stabilization, Laser resonators, Q switches, Airborne laser technology, Absorption, LIDAR, Optical fabrication, Carbon dioxide, Q switched lasers, Holmium, Solid state lasers, Pulsed laser operation, Oscillators, Laser crystals, Reflectivity, Crystals, Modes of laser operation, Output couplers, Mirrors

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Proceedings Article | 16 March 2016 Paper

Demonstration of a 500 mJ InnoSlab-amplifier for future lidar applications

J. Löhring, M. Strotkamp, F. Elsen, R. Kasemann, J. Klein, M. Traub, G. Kochem, A. Meissner, M. Höfer, D. Hoffmann

Proceedings Volume 9726, 97260M (2016) https://doi.org/10.1117/12.2211029

KEYWORDS: Optical amplifiers, Crystals, LIDAR, Wind energy, Oscillators, Diodes, Laser crystals, Resonators, Mirrors, Energy efficiency

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Proceedings Article | 20 February 2015 Paper

Radiation tests on erbium-doped garnet crystals for spaceborne CH4-Lidar applications

Ansgar Meissner, Martin Kreitler, Miroslaw Cubera, Philipp Kucirek, Bastian Gronloh, Dominik Esser, Marco Höfer, Hans-Dieter Hoffmann

Proceedings Volume 9342, 93420H (2015) https://doi.org/10.1117/12.2076122

KEYWORDS: Oscillators, Er:YAG lasers, Gamma radiation, Crystals, Absorption, Laser crystals, Garnet, Radiation effects, Output couplers, Spectroscopy

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Proceedings Article | 8 March 2013 Paper

Highly efficient nonthermal ablation of bone under bulk water with a frequency-doubled Nd:YVO4 picosecond laser

C. Tulea, J. Caron, H. Wahab, N. Gehlich, M. Hoefer, D. Esser, B. Jungbluth, A. Lenenbach, R. Noll

Proceedings Volume 8565, 85656E (2013) https://doi.org/10.1117/12.2004392

KEYWORDS: Laser ablation, Bone, Tissues, Picosecond phenomena, Natural surfaces, Water, Thermal effects, Optical coherence tomography, Laser tissue interaction, Plasma

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Proceedings Article | 6 March 2013 Paper

Simulations and experiments on resonantly pumped single-frequency Erbium lasers at 1.6 µm

A. Meissner, P. Kucirek, J. Li, S. Yang, M. Hoefer, D. Hoffmann

Proceedings Volume 8599, 85990H (2013) https://doi.org/10.1117/12.2001784

KEYWORDS: Laser crystals, Oscillators, Laser resonators, Pulsed laser operation, Absorption, Fiber lasers, Mirrors, Semiconductor lasers, Atmospheric modeling, Signal detection

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Proceedings Article | 6 March 2013 Paper

200-W Tm:YLF INNOSLAB laser

A. Meissner, J. Li, I. Lopez-Perez, S. Yang, M. Hoefer, D. Hoffmann

Proceedings Volume 8599, 85991C (2013) https://doi.org/10.1117/12.2004317

KEYWORDS: Laser crystals, Crystals, Beam shaping, Mirrors, Laser resonators, Semiconductor lasers, Pulsed laser operation, Laser applications, Output couplers, Laser development

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Proceedings Article | 2 April 2011 Paper

Actinic EUV-mask metrology: tools, concepts, components

Rainer Lebert, Azadeh Farahzadi, Wolfgang Diete, David Schäfer, Christoph Phiesel, Thomas Wilhein, Stefan Herbert, Aleksey Maryasov, Larissa Juschkin, Dominik Esser, Marco Hoefer, Dieter Hoffmann

Proceedings Volume 7985, 79850B (2011) https://doi.org/10.1117/12.896266

KEYWORDS: Photomasks, Extreme ultraviolet, Metrology, Inspection, Extreme ultraviolet lithography, Reflectometry, Reflectivity, Multilayers, Pulsed laser operation, Defect inspection

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Proceedings Article | 28 February 2009 Paper

High power UV generation at 355 nm by means of extracavity frequency conversion of a high repetition rate Innoslab MOPA system

Bastian Gronloh, Marco Höfer, Rolf Wester, Hans-Dieter Hoffmann

Proceedings Volume 7193, 71930Y (2009) https://doi.org/10.1117/12.813633

KEYWORDS: Crystals, Absorption, Temperature metrology, Second-harmonic generation, Laser crystals, Ultraviolet radiation, Thermal effects, Frequency conversion, Nonlinear crystals, Laser marking

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Proceedings Article | 13 March 2008 Paper

Very high-efficiency frequency-tripled Nd:YAG MOPA for spaceborne lidar

J. Luttmann, K. Nicklaus, V. Morasch, S. Fu, M. Höfer, M. Traub, H.-D. Hoffmann, R. Treichel, C. Wührer, P. Zeller

Proceedings Volume 6871, 687109 (2008) https://doi.org/10.1117/12.763640

KEYWORDS: Optical amplifiers, Oscillators, Crystals, Diodes, LIDAR, Laser crystals, Energy efficiency, Nd:YAG lasers, Pulsed laser operation, Semiconductor lasers

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Proceedings Article | 9 March 2007 Paper

Multi ten-watt, ultra-stable, and tuneable Innoslab-based single frequency MOPA

M. Höfer, M. Traub, R. Kleindienst, H. Sipma, H.-D. Hoffmann, Peter Wessels, Peer Burdack

Proceedings Volume 6451, 64510S (2007) https://doi.org/10.1117/12.709592

KEYWORDS: Amplifiers, Crystals, Diodes, Optical amplifiers, Oscillators, Laser crystals, Mirrors, Laser applications, Laser sources, Neodymium lasers

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Proceedings Article | 9 March 2007 Paper

Frequency stabilization of Q-switched Nd:YAG oscillators for airborne and spaceborne lidar systems

K. Nicklaus, V. Morasch, M. Hoefer, J. Luttmann, M. Vierkötter, M. Ostermeyer, J. Höffner, Christian Lemmerz, D. Hoffmann

Proceedings Volume 6451, 64511L (2007) https://doi.org/10.1117/12.701187

KEYWORDS: Oscillators, Pulsed laser operation, Laser stabilization, LIDAR, Laser systems engineering, Nd:YAG lasers, Q switching, Mirrors, Q switched lasers, Resonators

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Proceedings Article | 14 February 2007 Paper

Design and characterization of a rugged and compact setup for widely tunable harmonic generation in the ultraviolet

B. Jungbluth, M. Vierkoetter, M. Hoefer, J. Loehring, D. Oberbeckmann, D. Hoffmann

Proceedings Volume 6455, 645502 (2007) https://doi.org/10.1117/12.698623

KEYWORDS: Crystals, Second-harmonic generation, Ultraviolet radiation, Nonlinear crystals, Sapphire lasers, Harmonic generation, Laser crystals, Polarization, Prototyping, Tunable lasers

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Proceedings Article | 28 February 2006 Paper

MOPA with kW average power and multi MW peak power: experimental results, theoretical modeling, and scaling limits

K. Nicklaus, M. Hoefer, D. Hoffmann, J. Luttmann, R. Wester, R. Poprawe

Proceedings Volume 6100, 610016 (2006) https://doi.org/10.1117/12.646523

KEYWORDS: Prototyping, Rod lasers, Birefringence, Optical amplifiers, Refractive index, Temperature metrology, Polarization, Diffraction, Nd:YAG lasers, Oscillators

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Showing 5 of 18 publications

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