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33 results on '"Killi A"'

1. Monolithic multi-pass thin-disk laser amplifier providing near fundamental mode 2.3 mJ pulse energy at 1.4 kW average output power and 950 fs pulse duration

Author

Dirk Sutter, Alfred Leitenstorfer, Helge Hock, Alexander Killi, Dominik Bauer, Michael Scharun, and Thomas Dietz

Subjects
Materials science, High power lasers, business.industry, Amplifier, Pulse duration, Laser, law.invention, Power (physics), Optics, Thin disk, law, Laser beam quality, business, Pulse energy
Abstract

A Yb:YAG thin-disk multi-pass laser amplifier pumped at 941 nm delivers 2.3 mJ of pulse energy at 1.4 kW average output power, 950 fs pulse duration and M2 < 1.8 beam quality. Zero-phonon-line pumping at 969 nm improves M2 to below 1.4 at 1.8 mJ pulse energy and 1.1 kW average output.

Published
2018

2. Multi-kW Thin-Disk Amplifiers

Author

Dominik Bauer, S. P. Stark, Helge Hock, Stephan Prinz, Matthias Häfner, Sandro Klingebiel, Marcel Schultze, Christoph Wandt, Aleksander Budnicki, Christian Grebing, Catherine Y. Teisset, Thomas Metzger, Christian Stolzenburg, Dirk Sutter, Thomas Dietz, Michael Scharun, Alexander Killi, and Jan-Philipp Negel

Subjects
Optical amplifier, Materials science, business.industry, Amplifier, Nanosecond, Laser, law.invention, Thin disk, Regenerative amplification, Fiber Bragg grating, law, Picosecond, Optoelectronics, business
Abstract

We report on commercial picosecond thin-disk regenerative amplifiers providing pulse energies up to 200 mJ and 1 kW of average power. A monolithic mirror array was developed for further scaling in a multipass arrangement. First tests in continuous and nanosecond regimes yielded respectively 20 kW and 3 kW of output power. By merging both technologies and adding a nonlinear compression stage, sub-50-fs pulses are feasible at a multi-kW level.

Published
2018

4. Multi-kW Thin-Disk Amplifiers

Author

Teisset, Catherine, primary, Wandt, Christoph, additional, Schultze, Marcel, additional, Klingebiel, Sandro, additional, Häfner, Matthias, additional, Prinz, Stefan, additional, Stark, Sebastian, additional, Grebing, Christian, additional, Negel, Jan-Philipp, additional, Höck, Helge, additional, Scharun, Michael, additional, Dietz, Thomas, additional, Bauer, Dominik, additional, Budnicki, Aleksander, additional, Stolzenburg, Christian, additional, Sutter, Dirk, additional, Killi, Aleksander, additional, and Metzger, Thomas, additional

Published
2018
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6. Second Generation Thin-Disk Multipass Amplifier Delivering Picosecond Pulses with 2 kW of Average Output Power

Author

André Loescher, Marwan Abdou Ahmed, Dirk Sutter, Jan-Philipp Negel, Alexander Killi, Dominik Bauer, and Thomas Graf

Subjects
Materials science, business.industry, Amplifier, Laser, law.invention, Power (physics), Optics, Picosecond pulse, Thin disk, law, Picosecond, business, Ultrashort pulse, Laser beams
Abstract

We report on the first demonstration of an ultrafast laser system with more than 2 kW of average output power at picosecond pulse duration and 300 kHz repetition rate using a thin-disk multipass amplifier.

Published
2016

7. Dense wavelength beam combining of an external thin-film filter multi-laser cavity stabilized diode laser module

Author

S. Nagel, H. Zimer, Simon Rauch, Alexander Killi, and M. Haas

Subjects
Materials science, business.industry, Physics::Optics, 02 engineering and technology, 021001 nanoscience & nanotechnology, Laser, 01 natural sciences, law.invention, 010309 optics, Wavelength, Optics, Filter (video), law, Optical cavity, 0103 physical sciences, Optoelectronics, Thin film, 0210 nano-technology, business, Diffraction grating, Beam (structure), Diode
Abstract

We report on kW-class dense wavelength beam combining of a diode laser module which is spectrally stabilized using a novel external multi-laser cavity architecture based on a thin-film filter as a dispersive optical element.

Published
2016

8. 1.3 kW average output power Yb:YAG thin-disk multipass amplifier for multi-mJ picosecond laser pulses

Author

Marwan Abdou Ahmed, Jan-Philipp Negel, Andreas Voss, Dominik Bauer, Thomas Graf, Dirk Sutter, and Alexander Killi

Subjects
Optical amplifier, Materials science, business.industry, Amplifier, Second-harmonic generation, Laser, Power (physics), law.invention, Optics, Thin disk, Regenerative amplification, law, Laser power scaling, business
Abstract

An Yb:YAG thin-disk multipass amplifier delivering sub-8 ps laser pulses with an average output power of 1.3 kW at a repetition rate of 300 kHz, corresponding to a pulse energy of 4.4 mJ is presented.

Published
2014

11. Energies above 30 µJ and average power beyond 100 W directly from a mode-locked thin-disk oscillator

Author

Farina Schättiger, Dominik Bauer, Dirk Sutter, Thomas Dekorsy, Jochen Kleinbauer, and Alexander Killi

Subjects
Atmosphere, Optics, Materials science, Thin disk, Repetition (rhetorical device), business.industry, law, Pulse duration, business, Laser, law.invention, Power (physics)
Abstract

We demonstrate pulses containing more than 30 μJ with a pulse length of 1040 fs directly out of a thin-disk laser in ambient atmosphere. The laser was operated at 3.5 MHz repetition rate and 108 W output power.

Published
2011

12. Energies above 30 µJ and average power beyond 100 W directly from a mode-locked thin-disk oscillator

Author

Dominik Bauer, Alexander Killi, Jochen Kleinbauer, Dirk Sutter, Thomas Dekorsy, Philipp Wagenblast, and Farina Schättiger

Subjects
Physics, business.industry, Pulse duration, Laser, Pulse shaping, Power (physics), law.invention, Atmosphere, Optics, Thin disk, law, Self-phase modulation, business, Energy (signal processing)
Abstract

We demonstrate the generation of pulses containing more than 30 μJ of energy with a pulse length of 1040 fs directly out of a thin-disk laser in ambient atmosphere. The laser oscillator was operated at 3.5 MHz repetition rate and 108 W of average output power.

Published
2011

13. Femtosecond high-power thin-disc laser oscillators

Author

Dirk Sutter, Thomas Dekorsy, Sascha Weiler, Alexander Killi, Jochen Kleinbauer, Dominik Bauer, Joerg Neuhaus, and Christoph Scharfenberg

Subjects
Materials science, business.industry, Laser beam machining, Laser, Power (physics), law.invention, Surface micromachining, Optics, Mode-locking, law, Femtosecond, business, Pulse-width modulation, Energy (signal processing)
Abstract

We demonstrate the generation of pulses with twenty-five microjoules of energy generated from a thin-disk oscillator at repetition rates below three megahertz with the potential to drive high field experiments. First micromachining experiments are presented.

Published
2009

14. Pulse energies exceeding 20 μJ directly from a subpicosecond Yb:YAG oscillator by use of active angular multiplexing

Author

Alexander Killi, Jochen Kleinbauer, Joerg Neuhaus, Dominik Bauer, Sascha Weiler, Dirk Sutter, and Thomas Dekorsy

Subjects
Materials science, Optics, business.industry, Optoelectronics, business, Multiplexing, Energy (signal processing), Power (physics), Pulse (physics)
Abstract

We demonstrate the generation of pulses with twenty-five microjoules of energy generated from a thin-disk oscillator at a repetition rate of 2.94MHz, corresponding to an average output power of seventy-six watts.

Published
2009

15. PHYSICS OF HIGH PERFORMANCE Yb:YAG THIN DISK LASERS

Author

Petras V. Avizonis, David J. Bossert, Mark S. Curtin, and Alexander Killi

Subjects
Ytterbium, Physics, Amplified spontaneous emission, business.industry, chemistry.chemical_element, Superradiance, Laser, law.invention, Optical pumping, Optics, chemistry, Thin disk, law, Optoelectronics, Spontaneous emission, business, Absorption (electromagnetic radiation)
Abstract

We have achieved over 25 Kw CW operation with Yb:YAG thin disks, which was achieved under very high performance conditions, where slope optical-optical efficiencies approaching 70%, strong ASE suppression, and high heat removal rates were demonstrated simultaneously. Discussion of numerous interacting parameters will be presented with supporting data.

Published
2009

16. Tunable fs Laser Pulses from OPA with MHz Repetition Rate

Author

Uwe Morgner, Andy Steinmann, Hartmut Bartelt, A. Killi, Guido Palmer, and Jens Kobelke

Subjects
Optical amplifier, Materials science, Repetition (rhetorical device), Infrared, business.industry, Nonlinear optics, Laser, Signal, Optical parametric amplifier, law.invention, Optics, law, Optoelectronics, business, Phase matching
Abstract

We demonstrate an optical parametric amplifier with 1 MHz repetition frequency and 30 nJ, 16 fs pulses. It is tunable from 0.65 to 0.85 µm (signal) and 1.4 to 2.5 µm (idler) respectively.

Published
2006

17. Design Criteria for Cavity-Dumped Mode-Locked Laser Oscillators

Author

Max Lederer, Jochen Dörring, Alexander Killi, Uwe Morgner, Jürgen Frei, and Daniel Kopf

Subjects
Physics, Distributed feedback laser, business.industry, Far-infrared laser, Physics::Optics, Laser, law.invention, Laser linewidth, Optics, Mode-locking, law, Diode-pumped solid-state laser, Physics::Accelerator Physics, Optoelectronics, Physics::Atomic Physics, Laser power scaling, business, Tunable laser
Abstract

Design criteria for optimum performance of cavity-dumped passively mode-locked laser oscillators are presented. We discuss the difference between a picosecond laser mode-locked in the positive dispersion regime and a solitary mode-locked femtosecond laser system.

Published
2005

18. High Speed Electro-Optical Cavity Dumping of Mode- Locked Laser Oscillators

Author

Jochen Dörring, Uwe Morgner, Max Lederer, Jürgen Frei, Alexander Killi, and Daniel Kopf

Subjects
Materials science, business.industry, Injection seeder, Laser, law.invention, Pulse (physics), Optics, law, Optical cavity, Picosecond, Femtosecond, Ultrafast laser spectroscopy, Optoelectronics, business, Tunable laser
Abstract

High speed electro-optical cavity dumping is demonstrated for diode-pumped lasers, namely a picosecond Nd:YVO4 and a femtosecond Yb:glass oscillator. Repetition frequencies exceeding 1 MHz are obtained with pulse energies of more than 1.5µJ / 300nJ.

Published
2005

19. Photonic Devices Written in Glasses with Femtosecond Laser Systems

Author

Uwe Morgner, V. Maselli, Roberto Osellame, Giulio Cerullo, N. Chiodo, Giuseppe Della Valle, Alexander Killi, Daniel Kopf, Roberta Ramponi, Stefano Taccheo, Paolo Laporta, and Max Lederer

Subjects
Optics, Materials science, business.industry, law, Femtosecond, Optoelectronics, Ultrafast optics, Integrated optics, Photonics, business, Laser, law.invention
Published
2005

22. Femtosecond high-power thin-disc laser oscillators

Author

Dekorsy, Thomas, primary, Neuhaus, Joerg, additional, Bauer, Dominik, additional, Scharfenberg, Christoph, additional, Kleinbauer, Jochen, additional, Killi, Alexander, additional, Weiler, Sascha, additional, and Sutter, Dirk H., additional

Published
2009
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26. Photonic Devices Written in Glasses with Femtosecond Laser Systems

Author

Osellame, Roberto, primary, Chiodo, Nicola, additional, Maselli, Valeria, additional, Della Valle, Giuseppe, additional, Taccheo, Stefano, additional, Cerullo, Giulio, additional, Ramponi, Roberta, additional, Laporta, Paolo, additional, Killi, Alexander, additional, Morgner, Uwe, additional, Lederer, Max, additional, and Kopf, Daniel, additional

Published
2005
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