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
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TOM13 S08: Ultrafast: Ultrafast fiber laser systems
Time:
Tuesday, 14/Sept/2021:
18:00 - 19:30
Session Chair: Jakob Fellinger, University of Vienna, Faculty of Physics, Austria
Location:Aula 1
1st floor
Presentations
18:00 - 18:30 Invited ID: 209 / TOM13 S08: 1 TOM 13 Ultrafast Optical Technologies and Applications
Spatiotemporal mode-locking in fiber lasers
Frank William Wise
Cornell University, United States of America
Until 2017, all mode-locked lasers essentially operated in a single transverse mode of the laser cavity. In the past few years, the first demonstrations of locking of multiple transverse and longitudinal modes of a fiber laser have appeared. The existence of many different 3-dimensional (spatiotemporal) lasing states opens opportunities for future scientific investigation. Generation of ultrashort pulses in multiple modes may also provide a new route to power scaling in fiber lasers. Basic features of multimode or spatiotemporal mode-locking will be presented along with first steps toward a theoretical treatment.
18:30 - 18:45 ID: 263 / TOM13 S08: 2 TOM 13 Ultrafast Optical Technologies and Applications
130 W, 1.3 mJ coherently combined ultrafast Tm-doped fiber laser system operating at 1.9 µm wavelength
Tobias Heuermann1,2, Ziyao Wang1, Mathias Lenski1, Martin Gebhardt1,2, Christian Gaida3, Arno Klenke2, Michael Müller1, Christian Grebing1,4, Jens Limpert1,2,4
1Friedrich-Schiller-University Jena, Germany; 2Helmholtz-Institute Jena, Jena, Germany; 3Active Fiber Systems GmbH, Jena, Germany; 4Fraunhofer Institute for Optics and Fine Mechanics, Jena, Germany
In this contribution, we present our first results on coherent beam combination of four ultrafast Tm-doped fiber amplifiers. Pulse energies in the mJ-regime with a pulse duration of 123 fs and an average power of 130 W (98 kHz repetition rate) were achieved. This is the highest pulse energy emitted from an ultrafast SWIR fiber laser to date and proves the scaling potential of ultrafast Tm-doped fiber lasers.
18:45 - 19:00 ID: 357 / TOM13 S08: 3 TOM 13 Ultrafast Optical Technologies and Applications
Amplitude noise optimization in mode-locked Yb:doped all polarization-maintaining nonlinear amplifying loop mirror lasers
Vito Fabian Pecile1, Aline Sophie Mayer1, Jakob Fellinger1, Valentina Shumakova1,2, Oliver Hubert Heckl1
1University of Vienna, Faculty of Physics, Faculty Center for Nano Structure Research, Christian Doppler Laboratory for Mid-IR Spectroscopy and Semiconductor Optics, Boltzmanngasse 5, 1090 Vienna, Austria; 2Photonics Institute, TU Wien, Gusshausstraße 27-29, 1040 Vienna, Austria
In the past few years, the interest in fiber lasers mode-locked with a non-linear amplifying loop mirror has increased due to their robustness and low noise performance. Different amplitude noise characteristics for operation in different intracavity group delay dispersion regimes have been investigated. However, in recently reported laser designs, tuning of the saturable absorber parameters is possible even after achieving mode-locking. We provide systematic amplitude noise measurements and present options for a further optimization of the amplitude noise performance by altering the saturable absorber behavior in mode-locked operation.
19:00 - 19:30 Invited ID: 507 / TOM13 S08: 4 TOM 13 Ultrafast Optical Technologies and Applications
Fiber-based laser systems emitting in a broad range of the mid-infrared
Jaroslaw Sotor
Wroclaw University of Science and Technology, Poland
The molecular fingerprint region located in the 2-10 um spectral range plays an essential role in scientific research, environmental protection, security, and even searching for signs of life beyond the Earth. Progress in these fields is directly linked to developing stable and versatile laser sources operating in the MIR. This talk will present our recent results on quasi-all-fiber laser systems generating broadband optical spectra with a high-quality frequency comb structure in the MIR spectral range. As a workhorse, a stable and compact femtosecond Er-doped fiber-based platform is used.
