Journal ArticleDOI
Ultrafast thin-disk laser with 80 μJ pulse energy and 242 W of average power
Clara J. Saraceno,Florian Emaury,Cinia Schriber,Martin Hoffmann,Matthias Golling,Thomas Südmeyer,Ursula Keller +6 more
TLDR
With this new milestone result, this work has successfully scaled the pulse energy of ultrafast laser oscillators to a new performance regime and can predict that pulse energies of several hundreds of microjoules will become possible in the near future.Abstract:
We present a semiconductor saturable absorber mirror (SESAM) mode-locked thin-disk laser generating 80 μJ of pulse energy without additional amplification. This laser oscillator operates at a repetition rate of 3.03 MHz and delivers up to 242 W of average output power with a pulse duration of 1.07 ps, resulting in an output peak power of 66 MW. In order to minimize the parasitic nonlinearity of the air inside the laser cavity, the oscillator was operated in a vacuum environment. To start and stabilize soliton mode locking, we used an optimized high-damage threshold, low-loss SESAM. With this new milestone result, we have successfully scaled the pulse energy of ultrafast laser oscillators to a new performance regime and can predict that pulse energies of several hundreds of microjoules will become possible in the near future. Such lasers are interesting for both industrial and scientific applications, for example for precise micromachining and attosecond science.read more
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Third-Generation Femtosecond Technology
Hanieh Fattahi,Helena G. Barros,Martin Gorjan,Thomas Nubbemeyer,Bidoor Alsaif,Catherine Y. Teisset,Marcel Schultze,Stephan Prinz,Matthias Haefner,Moritz Ueffing,Ayman Alismail,Lenard Vamos,Alexander Schwarz,Oleg Pronin,Jonathan Brons,Xiao Tao Geng,Gunnar Arisholm,Marcello F. Ciappina,Vladislav S. Yakovlev,Dong Eon Kim,Abdallah M. Azzeer,Nicholas Karpowicz,Dirk Sutter,Zsuzsanna Major,Thomas Metzger,Ferenc Krausz +25 more
TL;DR: FATTAHI, Hanieh, BARROS, HELENA G; GORJAN, MARTIN; NUBBEMEYER, THOMAS; ALSAIF, BIDOOR; TEISSET, CATHERINE Y; SCHULTZE, MARCEL; PRINZ, STEPHAN; HAEFNER, MATTHIAS; UEFFING, MORITZ; ALISMAIL, AYMAN; VAMOS, LENARD; SCHWARZ, ALEXANDER; PRONIN
Journal ArticleDOI
Ultrafast thin-disk multipass laser amplifier delivering 1.4 kW (4.7 mJ, 1030 nm) average power converted to 820 W at 515 nm and 234 W at 343 nm
Jan-Philipp Negel,André Loescher,Andreas Voss,Dominik Bauer,Dirk Sutter,Alexander Killi,Marwan Abdou Ahmed,Thomas Graf +7 more
TL;DR: An Yb:YAG thin-disk multipass laser amplifier delivering sub-8 ps pulses at a wavelength of 1030 nm with 1420 W of average output power and 4.7 mJ of pulse energy is reported on.
Journal ArticleDOI
Energy scaling of Kerr-lens mode-locked thin-disk oscillators.
Jonathan Brons,Vladimir Pervak,Elena Fedulova,Dominik Bauer,Dirk Sutter,Vladimir L. Kalashnikov,Alexander Apolonskiy,Oleg Pronin,Ferenc Krausz +8 more
TL;DR: Geometric scaling of a Kerr-lens mode-locked Yb:YAG thin-disk oscillator yields femtosecond pulses with an average output power of 270 W and peak power of 38 MW, which surpass the performance of any previously reported femTosecond laser oscillator operated in atmospheric air.
Journal ArticleDOI
Optically pumped VECSELs: review of technology and progress
TL;DR: In this article, a review of the recent technological developments of VECSELs in connection with the new milestones that continue to pave the way towards their use in numerous applications is presented.
Journal ArticleDOI
High-power 100 fs semiconductor disk lasers
Dominik Waldburger,Sandro M. Link,Mario Mangold,Cesare G. E. Alfieri,Emilio Gini,Matthias Golling,Bauke W. Tilma,Ursula Keller +7 more
TL;DR: In this article, the authors present record performance with high average power and pulse durations as short as 100 fs with a semiconductor saturable absorber mirror (SESAM) modelocked vertical external-cavity surface-emitting laser (VECSEL) at a center wavelength of 1034 nm.
References
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Journal ArticleDOI
Semiconductor saturable absorber mirrors (SESAM's) for femtosecond to nanosecond pulse generation in solid-state lasers
Ursula Keller,K.J. Weingarten,Franz X. Kärtner,D. Kopf,B. Braun,I.D. Jung,R. Fluck,C. Honninger,Nicolai Matuschek,J. Aus der Au +9 more
TL;DR: In this paper, the design requirements of SESAM's for stable pulse generation in both the mode-locked and Q-switched regime were reviewed, and the combination of device structure and material parameters provided sufficient design freedom to choose key parameters such as recovery time, saturation intensity, and saturation fluence.
Journal ArticleDOI
Scalable concept for diode-pumped high-power solid-state lasers
TL;DR: In this article, a very thin laser crystal disc with one face mounted on a heat sink is proposed for diode-pumped high-power solid-state laser systems, which allows very high pump power densities without high temperature rises within the crystal and leads to an almost homogeneous and one-dimensional heat flux perpendicular to the surface.
Journal ArticleDOI
Off-Axis Paths in Spherical Mirror Interferometers
TL;DR: When a spherical mirror interferometer is illuminated by an off-axis ray of light, the repeated reflections cause the ray to trace a path which lies on the surface of a hyperboloid, with the points of reflection on the mirrors on ellipses as mentioned in this paper.
Journal ArticleDOI
Femtosecond fiber CPA system emitting 830 W average output power.
Tino Eidam,Stefan Hanf,Enrico Seise,T. V. Andersen,T. Gabler,Christian Wirth,Thomas Schreiber,Jens Limpert,Andreas Tünnermann +8 more
TL;DR: This Letter reports on the generation of 830 W compressed average power from a femtosecond fiber chirped pulse amplification (CPA) system and discusses further a scaling potential toward and beyond the kilowatt level by overcoming the current scaling limitations imposed by the transversal spatial hole burning.
Journal ArticleDOI
Direct frequency comb spectroscopy in the extreme ultraviolet
TL;DR: The generation of extreme-ultraviolet frequency combs, reaching wavelengths of 40 nanometres, is reported by coupling a high-power near-infrared frequency comb to a robust femtosecond enhancement cavity, and the absolute frequency of the argon transition has been determined by direct frequency comb spectroscopy.