Conference Agenda

Topical Meetings and Sessions:

TOM 1 - Silicon Photonics and Guided-Wave Optics
TOM 2 - Computational, Adaptive and Freeform Optics
TOM 3 - Optical System Design, Tolerancing and Manufacturing
TOM 4 - Bio-Medical Optics
TOM 5 - Resonant Nanophotonics
TOM 6 - Optical Materials: crystals, thin films, organic molecules and polymers, syntheses, characterization and devices
TOM 7 - Thermal radiation and energy management
TOM 8 - Nonlinear and Quantum Optics
TOM 9 - Optics at Nanoscale (ONS)
TOM 10 - Optical Microsystems (OMS)
TOM 11 - Waves in Complex Photonic Media
TOM 12 - Optofluidics
TOM 13 - Ultrafast Optical Technologies and Applications
TOM 14 - Advances and Applications of Optics and Photonics
EU Project Session
Early Stage Researcher Session organised by SIOF
Grand Challenges of Photonics Session

More information on the Topical Meetings

Select a date or location to show only sessions at that day or location. Select a single session for detailed view (with abstracts and downloads when you are logged in as registered attendee). Plenary speeches, tutorials, and Early Researcher session will be updated very soon. Thank you for your patience!

Please note that all times are shown in the time zone of the conference. The current conference time is: 18th Aug 2022, 18:42:57 CEST

Session Overview
TOM13 S09: Ultrafast: Ultrafast high power amplifiers
Wednesday, 15/Sept/2021:
8:15 - 9:45

Session Chair: Hanieh Fattahi, Max Planck Institute for the Science of Light, Germany
Location: Aula 1

1st floor

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8:15 - 8:45
ID: 183 / TOM13 S09: 1
TOM 13 Ultrafast Optical Technologies and Applications

Ultrafast thin-disk amplifier with over 500 mJ pulse energy at 1 kHz repetition rate

Yanik Pfaff, Michael Rampp, Clemens Herkommer, Robert Jung, Catherine Yuriko Teisset, Sandro Klingebiel, Thomas Metzger

TRUMPF Scientific Lasers, Germany

We demonstrate a thin-disk based regenerative amplifier system with a maximum pulse energy before compression of 550 mJ at a repetition rate of 1 kHz. Pulse compression was preliminary done with a fraction of the output and led to a pulse duration of 602 fs.

8:45 - 9:00
ID: 419 / TOM13 S09: 2
TOM 13 Ultrafast Optical Technologies and Applications

Thin-disk multipass amplifier for multi-kilowatt ultrafast lasers

Johanna Dominik1, Michael Scharun1, Benjamin Dannecker1, Michael Rampp2, Simon Nagel1, Thomas Dekorsy3, Dominik Bauer1, Alexander Killi1

1TRUMPF Laser GmbH, Germany; 2TRUMPF Scientific Lasers GmbH + Co. KG, Germany; 3German Aerospace Center (DLR), Institute of Technical Physics and Stuttgart University, Germany

We present a thin-disk multipass amplifier which allows power scaling of ultrafast lasers to the multi-kilowatt and 100 mJ range. With a seed laser including an Innoslab amplifier, 170 W of average power were amplified to 1950 W average power at a repetition rate of 800 kHz with near diffraction-limited beam quality at a stretched pulse duration of 10 ps. In a second experiment, 117 mJ of pulse energy were reached at a stretched pulse duration of 1 ns using a seed laser including a regenerative thin-disk amplifier.

9:00 - 9:15
ID: 255 / TOM13 S09: 3
TOM 13 Ultrafast Optical Technologies and Applications

Coherently combined high power 16 core rod-type multicore amplifier

Arno Klenke1,2, Albrecht Steinkopff1, Christopher Aleshire1, Cesar Jauregui1, Stefan Kuhn3, Johannes Nold3, Christian Hupel3, Sigrun Hein3, Steffen Schulze3, Nicoletta Haarlammert3, Thomas Schreiber3, Andreas Tünnermann1,2,3, Jens Limpert1,2,3

1Institute of Applied Physics, Abbe Center of Photonics, Friedrich-Schiller-Universität, Albert-Einstein-Strasse 15, 07745 Jena, Germany; 2Helmholtz-Institute Jena, Froebelstieg 3, 07743 Jena, Germany; 3Fraunhofer Institute for Applied Optics and Precision Engineering, Albert-Einstein-Strasse 7, 07745 Jena, Germany

We present a rod-type, ytterbium-doped multicore fiber with 4x4 cores for coherent beam combination of femtosecond pulses. Due to the all-glass structure of the fiber, high average powers of up to 500 W after combination and compression could be achieved. Additionally, a version of this fiber with larger core diameters has been employed for energy extraction experiments resulting in multi 10 mJ energy nanosecond pulses, demonstrating future power scaling opportunities.

9:15 - 9:45
ID: 472 / TOM13 S09: 4
TOM 13 Ultrafast Optical Technologies and Applications

KW average power, high pulse energy, ultrafast lasers based on cryo-cooled Yb:YAG

Jorge J. Rocca

Colorado State University, United States of America

We discuss the generation of > 1 J pulses at 1 kHz repetition rate from a cryogenically cooled Yb:YAG active mirror amplifier. After compression 1.1 J pulses of < 4.5 ps duration are obtained with high beam quality and high shot-to-shot stability. In addition, we report the frequency doubling of 1.2 J ns pulses with 78 percent conversion efficiency in LBO to generate 0.94 J, =515 nm pulses. A second LBO crystal generates additional >100 mJ second harmonic from unconverted light reaching a total green average power of 1.04 kW.

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