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Speiser, Jochen and Giesen, Adolf and Renz, Günther (2012) Thin disk laser in the 2 µm wavelength range. In: Proc. SPIE 8547, High-Power Lasers 2012: Technology and Systems. SPI Security and Defense, High-Power Lasers 2012: Technology and Systems, 23.-28. Sept. 2012, Edinburgh, Vereinigtes Königreich.
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Abstract
The thin disk laser is a successful concept for high output power and/or high pulse energy, high efficiency and good beam quality in the 1 μm range. Holmium-doped materials are a promising approach to transform this success to the 2 μm range. Ho:YAG is especially interesting for high pulse energies due to the long fluorescence lifetime (~ 8 ms) which provides good energy storage capabilities. We have realized a Ho:YAG thin-disk laser with a cw output power of 15 W at 2.09 μm and a maximum optical-to-optical efficiency of 37%. The laser was pumped with a Tm-fiber laser. Numerical simulations of the Ho:YAG thin disk laser show the potential for further scaling. As broadly tunable alternative, also a Cr:ZnSe thin disk laser was investigated. A Tm-fiber laser and a fiber coupled diode stack were tested as pump sources. A laser power of 3.5 W was achieved with diode pumping.© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only
| Item URL in elib: | https://elib.dlr.de/81581/ | ||||||||||||
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| Document Type: | Conference or Workshop Item (Speech) | ||||||||||||
| Title: | Thin disk laser in the 2 µm wavelength range | ||||||||||||
| Authors: |
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| Date: | 8 November 2012 | ||||||||||||
| Journal or Publication Title: | Proc. SPIE 8547, High-Power Lasers 2012: Technology and Systems | ||||||||||||
| Refereed publication: | No | ||||||||||||
| Open Access: | No | ||||||||||||
| Gold Open Access: | No | ||||||||||||
| In SCOPUS: | No | ||||||||||||
| In ISI Web of Science: | No | ||||||||||||
| Status: | Published | ||||||||||||
| Keywords: | Laser | ||||||||||||
| Event Title: | SPI Security and Defense, High-Power Lasers 2012: Technology and Systems | ||||||||||||
| Event Location: | Edinburgh, Vereinigtes Königreich | ||||||||||||
| Event Type: | international Conference | ||||||||||||
| Event Dates: | 23.-28. Sept. 2012 | ||||||||||||
| Organizer: | SPIE | ||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||
| HGF - Program: | Aeronautics | ||||||||||||
| HGF - Program Themes: | Aircraft Research (old) | ||||||||||||
| DLR - Research area: | Aeronautics | ||||||||||||
| DLR - Program: | L AR - Aircraft Research | ||||||||||||
| DLR - Research theme (Project): | L - Laser Research and Technology (old) | ||||||||||||
| Location: | Stuttgart | ||||||||||||
| Institutes and Institutions: | Institute of Technical Physics | ||||||||||||
| Deposited By: | Speiser, Jochen | ||||||||||||
| Deposited On: | 20 Mar 2013 11:11 | ||||||||||||
| Last Modified: | 20 Mar 2013 11:11 |
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