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Proceedings Paper

Comparison of silica-based materials and fibers in side- and end-pumped fiber lasers
Author(s): Andreas Langner; Gerhard Schötz; Mario Such; Volker Reichel; Stephan Grimm; Martin Leich; Sonja Unger; Johannes Kirchhof; Björn Wedel; Volker Krause; Georg Rehmann
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Paper Abstract

We have developed a production process for rare earth doped bulk silica to fulfill the demand of such material for fiber laser applications. In contrast to the standard techniques such as a combination of MCVD (modified chemical vapor deposition) and solution doping, our novel technology is based on a granulate process that enables novel ultra large mode area fiber designs (XLMA) with active core diameters above 100 μm as well as larger batch sizes. Several Yb-doped fibers with two different fiber designs were manufactured and successfully tested in both side- and end-pumped fiber laser setups. Both fiber designs have been compared to similar MCVD fibers. The influence of the material composition on the photodarkening properties has been investigated.

Paper Details

Date Published: 19 February 2009
PDF: 9 pages
Proc. SPIE 7195, Fiber Lasers VI: Technology, Systems, and Applications, 71950Q (19 February 2009); doi: 10.1117/12.808218
Show Author Affiliations
Andreas Langner, Heraeus Quarzglas GmbH & Co. KG (Germany)
Gerhard Schötz, Heraeus Quarzglas GmbH & Co. KG (Germany)
Mario Such, Heraeus Quarzglas GmbH & Co. KG (Germany)
Volker Reichel, Institut für Photonische Technologien e.V. (Germany)
Stephan Grimm, Institut für Photonische Technologien e.V. (Germany)
Martin Leich, Institut für Photonische Technologien e.V. (Germany)
Sonja Unger, Institut für Photonische Technologien e.V. (Germany)
Johannes Kirchhof, Institut für Photonische Technologien e.V. (Germany)
Björn Wedel, Highyag Lasertechnologie GmbH (Germany)
Volker Krause, Laserline GmbH (Germany)
Georg Rehmann, Laserline GmbH (Germany)


Published in SPIE Proceedings Vol. 7195:
Fiber Lasers VI: Technology, Systems, and Applications
Denis V. Gapontsev; Dahv A. Kliner; Jay W. Dawson; Kanishka Tankala, Editor(s)

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