| Presentation Time |
- 13:30-14:15 Prof. Valentin Petrov (Max Born Inst. for Nonlinear Optics and Ultrafast Spectroscopy, Germany)
- 14:15-15:00 Prof. Satoshi Ashihara (Prof. Satoshi Ashihara (Inst. of Industrial Science, The Univ. of Tokyo, Japan)
- 15:00-15:30 Break
- 15:30-16:15 Prof. Jens Limpert (Inst. of Applied Physics, Friedrich Schiller Univ. Jena, Germany)
- 16:15-17:00 Dr. Julien Le Gouët (ONERA, France)
- 17:00-17:45 Dr. Hiyori Uehara (Nat’l Inst. for Fusion Science, Japan)
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Recent progress in the generation of sub-100-fs pulses from 2-micron Tm and Ho mode-locked solid-state lasers
Prof. Valentin Petrov
Max Born Inst. for Nonlinear Optics and Ultrafast Spectroscopy, Germany
Abstract
Recent progress in the generation of sub-100-fs pulses from 2-micron Tm and Ho mode-locked solid-state lasers
Prof. Valentin Petrov (Max Born Institute for Nonlinear Optics and Ultrafast Spectroscopy, Germany)
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Over the past several years, an impressive progress is observed in the development of mode-locked (ML) solid-state lasers emitting in the 2-µm spectral range towards femtosecond pulse generation. This advancement is related to a great extent to the availability of new host materials for Tm- and Ho-ion doping or co-doping. We discuss essential requirements and properties of such laser media for successful operation in the sub-100-fs regime based on the 3F4 →3H6 Tm3+ and the 5I7 →5I8 Ho3+ transitions, summarizing recent ML laser results.
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Broadband mode-locked Cr:ZnS laser and its application to vibrational spectroscopy
Prof. Satoshi Ashihara
Inst. of Industrial Science, The Univ. of Tokyo, Japan
Abstract
Broadband mode-locked Cr:ZnS laser and its application to vibrational spectroscopy
Satoshi Ashihara (Institute of Industrial Science, The University of Tokyo, Japan)
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Stable mode-locked oscillation with a broad spectral span of 2.0-2.5 micron in the infrared wavelength range is achieved with a Cr:ZnS gain medium and a carbon nanotube saturable absorber. We apply this light source to construct the background-free vibrational spectroscopy, enabling highly sensitive molecular detection.
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High performance short and ultrashort 2 µm wavelength fiber laser sources for scientific and industrial applications
Prof. Jens Limpert
Inst. of Applied Physics, Friedrich Schiller Univ. Jena, Germany
Abstract
High performance short and ultrashort 2 µm wavelength fiber laser sources for scientific and industrial applications
Jens Limpert (Friedrich Schiller University Jena, Institute of Applied Physics, Germany)
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We will review the recent achievements and perspectives of high-power pulsed Thulium-doped fiber lasers. The presentation will include highly efficient inband-pumped multi-mJ nanosecond systems, high repetition rate high peak power few-cycle pulses as well as ultra-compact industrial-grade femtosecond sources. Selected applications such as soft-Xray-generation and semiconductor processing will be presented.
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Holmium Doped Fibers Codoped with Aluminium or Phosphorus for High Power and High Efficiency Infrared Lasers
Dr. Julien Le Gouët
ONERA, France
Abstract
Holmium Doped Fibers Codoped with Aluminium or Phosphorus for High Power and High Efficiency Infrared Lasers
Julien Le Gouët (ONERA, France)
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We describe the laser performance of specialty holmium doped fibers designed for high power and high efficiency, based on alumino-phospho-silicate or alumina-silicate core with a surrounding pedestal. We demonstrated with the latter an unprecedented optical efficiency of 60% in clad pumping configuration, and analyze all the results with our numerical model.
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High power solid-state and fiber lasers at 3-4 μm wavelength and their applications
Dr. Hiyori Uehara
Nat’l Inst. for Fusion Science, Japan
Abstract
High power solid-state and fiber lasers at 3-4 μm wavelength and their applications
Hiyori Uehara, Ryo Yasuhara (National Institute for Fusion Science, Japan), Kenji Goya (Akita Prefectural University, Japan), Shigeki Tokita (Kyoto University, Japan)
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We report on the high-power mid-infrared solid-state/fiber lasers we have developed so far, including an erbium laser in the 3 μm wavelength band and an Fe:ZnSe laser in the 4 μm wavelength band.
In addition, applications of these lasers, such as plastic processing and gas sensing, will be introduced.
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