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Thin disk laser in the 2 µm wavelength range

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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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/
Document Type:Conference or Workshop Item (Speech)
Title:Thin disk laser in the 2 µm wavelength range
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Speiser, Jochenjochen.speiser (at) dlr.deUNSPECIFIED
Giesen, Adolfadolf.giesen (at) dlr.deUNSPECIFIED
Renz, GüntherGuenther.Renz (at) dlr.deUNSPECIFIED
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 ISI Web of Science:No
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
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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